Ultimately the CPU is not the issue, it's the GPU intensive architecture that's different from last gen architecture, PC's also have issues with poorly optimised ports 

No, the CPU is an issue. Games running on 8 year old hardware should not be bottlenecked by the CPU of new gen hardware, theres simply no excuse for that. Not everything can run on the GPU and the WiiUs compute power probably isnt breathtaking either.

"There was even some discussion on trying to utilise the GPU via compute shaders (GPGPU) to offload work from the CPU - exactly the approach I expect to see gain traction on the next-gen consoles - but with very limited development time and no examples or guidance from Nintendo, we didn't feel that we could risk attempting this work. If we had a larger development team or a longer timeframe, maybe we would have attempted it, but in hindsight we would have been limited as to what we could have done before we maxed out the GPU again. The GPU is better than on PS3 or Xbox 360, but leagues away from the graphics hardware in the PS4 or Xbox One."

http://www.eurogamer.net/articles/digitalfoundry-2014-secret-developers-wii-u-the-inside-story

I gave you an example of a tradtionally intensive CPU heavy game type in Hyrule Warriors that the Wii U will handle without issue. If some devs can't or wont program for the Wii U's GPU then it's not the ability of the system, it's the architecture, Nintendo and some others seem to do well enough on the system as is

Again even high end PC's have had many similar issues with ports, in my opinion it's still mostly to do with architecture and the willingness of devs to work with it

Yes, you are right. I have that much faith in Ubi Montreal that I believe that would happen, like it happened for Splinter Cell on Xbox original.

And Oni is always making cases of intent, I don't believe Ubi owes anything to Nintendo and was not what I was trying to say like I clarified twice already what I meant by that.

I gave you an example of a tradtionally intensive CPU heavy game type in Hyrule Warriors that the Wii U will handle without issue. If some devs can't or wont program for the Wii U's GPU then it's not the ability of the system, it's the architecture, Nintendo and some others seem to do well enough on the system as is

Again even high end PC's have had many similar issues with ports, in my opinion it's still mostly to do with architecture and the willingness of devs to work with it

http://www.mcvuk.com/news/read/tekken-s-harada-says-wii-u-s-cpu-lags-behind-360-and-ps3/099435

"As far as graphical processing and such, it's not much of an issue. But as far as the CPU goes, the clock is kinda low,”

http://www.gamespot.com/forums/system-wars-314159282/dynasty-warriors-producer-wii-u-cpu-power-less-com-29294152/  

"One of the weaknesses of the Wii U compared to PS3 and Xbox 360 is the CPU power is a little bit less...So for games in the Warriors series, including Dynasty Warriors and Warriors Orochi, when you have a lot of enemies coming at you at once, the performance tends to be affected because of the CPU."

http://www.nowgamer.com/news/1687689/wii_u_has_a_horrible_slow_cpu_says_metro_last_light_dev.html

"Wii U has a horrible, slow CPU..... We had an early look at it, we thought we could probably do it, but in terms of the impact we would make on the overall quality of the game – potentially to its detriment – we just figured it wasn’t worth pursuing at this time. It’s something we might return to. I really couldn’t make any promises, though"

I've noticed it myself in games like Mass Effect 3 (citadel levels), emmediately I leave an elevator and walk towards the presidium commons (with about 40 - 50 NPCs) boom, the framerate tanks.

http://www.mcvuk.com/news/read/tekken-s-harada-says-wii-u-s-cpu-lags-behind-360-and-ps3/099435

"As far as graphical processing and such, it's not much of an issue. But as far as the CPU goes, the clock is kinda low,”

http://www.gamespot.com/forums/system-wars-314159282/dynasty-warriors-producer-wii-u-cpu-power-less-com-29294152/  

"One of the weaknesses of the Wii U compared to PS3 and Xbox 360 is the CPU power is a little bit less...So for games in the Warriors series, including Dynasty Warriors and Warriors Orochi, when you have a lot of enemies coming at you at once, the performance tends to be affected because of the CPU."

http://www.nowgamer.com/news/1687689/wii_u_has_a_horrible_slow_cpu_says_metro_last_light_dev.html

"Wii U has a horrible, slow CPU..... We had an early look at it, we thought we could probably do it, but in terms of the impact we would make on the overall quality of the game – potentially to its detriment – we just figured it wasn’t worth pursuing at this time. It’s something we might return to. I really couldn’t make any promises, though"

I've noticed it myself in games like Mass Effect 3 (citadel levels), emmediately I leave an elevator and walk towards the presidium commons (with about 40 - 50 NPCs) boom, the framerate tanks.

You seem to fail to realize (on purpose or otherwise) what he's saying - Hyrule Warriors is WiiU exclusive and it will be fine tuned for WiiU.

Nintendo and their 3rd party exclusive partners will squeeze eveything that they can from WiiU, but that does not mean that rest of 3rd party devs will waste their time and resources trying to do something that should be easy by default for 8th gen console.

Pulling 'GPU intensive arhitecture' card is obfuscation of real issue (given that both PS4 and XOne are also 'GPU intensive arhitectures' and they would have no problem), and the real issue is WiiU's very weak CPU.

those are pretty poor "arguments". you are baselessly saying it takes an herculean power to do this stuff on wii u when it's merely DIFFERENT. Just like every console is different from one another. ps3 was VERY different from 360, in terms of programing. just for the games to be ported to ps3, devs had to put far more effort than they will ever have with any wii u game. would you consider they were wasting their resources on ps3?

Developing for wii u is different than for ps4, wich is different than for xone and all are different from wii, ps3 and 360. it's a dev 's job to learn how to use each hardware without making complaints up.

I'm not sure about what "arguments" you're talking about, but I'll suggest you reread few previous posts, specially one with Dynasty Warriors dev and from EG article, before jumping the  gun.

Naturally that developing for every system is different than the others. But that's not what was the subject of discussion - porting 7th gen game to 8th gen console should be very easy, not something that requires that much trouble due to weak specs of one or more components.

But I agree, it is indeed devs' jobs to learn how to use hardware properly. Of course, there needs to be incentive for that, and for 3rd parties that means user base that is actually buying those titles...which in Wii U's case is not happening.

Which brings us at the end to Ubi, their resolve to support Wii U and, in the end, their (completely justified) reasons to drop or lower that support.