While it did not sell so well, it currently stands as the best selling 3rd party game, and it was a launch game, so it was starting with no base. While 3rd parties wouldn`t like risk trying a new game vs an established base, the games they did released did not make much sense in the first place, I believe. So they sold poor, perhaps not that much of a surprise to most people. Releasing games already estblished on previous consoles onto a new console, especially ones that start on a later half of a series, doesn`t seem like a good, nor fair way to test the base.

I guess I expected 3rd parties to give new, fresh games to entice me to buy the Wii U for their new games, and not of games already released on other consoles, some of them being released several months ago. Honestly, who would want to buy a game again when they may have played it before on a different console? I wouldn`t. The main drive for a new console would be to buy new games to play, and not older games from other consoles. Yet, that is what they did, and to not much surprise, sold poorly.

Well, Nintendo didn`t die out, but 3rd parties did on the system. I guess the best they could do was pay them to bring more games, but I guess that didn`t seem worthwhile enough for them.

All it matters is if it sold well or not and by your admittance it did not. And it was bundled in Europe and it was a launch game doesnt matter if it started witha base of zero alot of games did on other systems and still did good. Hell that just means the game had more time to sell than most and hasnt. SO again really no incentive for 3rd parties to make exclusives especially on Wii U.  I dont understand your 2nd point because alot of games that were established on older consoles still did real well on PS4 xone, if it was a real issue game series would never continue between generations. So i have to inquiry again what games would have made sense? Because even something like W101 flopped evne the Sonics didnt sell.

Last of US, GTA 5, GOW collection say hi. There is a market for rereleases if the game is good enough and not everyone had the system it was released on it will sell we have dozens of examples.

because Project Cars costs a little more than Bloodstained

Because they already have profitable projects for other systems and no spare team?

95% of funding for Project cars came before WiiU version was even mentioned and fans still pretend it was the main reason funds where collected so they can complain. They surely would report any detail of it to demand reimbursement when the game shows to be not on pair with other versions.

The big guys have the Money they need, they just don't see a reason to invest. If WiiU fans don't buy it released why do you think they would pay in advance?

Which is why crowd funding makes sense. The games that get released are the ones that have already been covered in advance financially. I think that point is being missed altogether. People are just miming that "it already got a shot". 

With crowd funding, no one is obligated to give the console a shot at all. If the production of the game is fully funded, then there's literally no risk involved on the part of the publisher.

 Other devs might also get a read off of the process, and we'd have a better idea of what will sell to the U's current demographic (the last real test came at a time when there was less than a fifth of the current user base buying games). That's a lot bigger pond to cast into, and us players who were drawn in by Smash, Kart, Bayonetta 2, and more aren't the same gamers as those who bit on Nintendoland alone. 

So the best selling game on WiiU was an exclusive and it didn't cover the cost. And for sure if it was MP it would do even worse. So you yourself is justifying why no 3rd party should bother doing it.

Just one question, which promises?
I actually remember exactly two that where really broken.

Project CARS release and Rayman Legends being exclusive.

Nope. there are effectively publishers to blame (EA), to some degree. But at the same time there have been so many other things to blame. Assassins Creed 3 wasn't such a bad port except for loading time. AC 4 was. Yes. But after AC3 already doing bad. And after Zombi U at least not selling good, probably worse than VGC shows.

One to blame effectively is Nintendo. They've done it their way. Now they are in a position they have to handle the consequences. Not only the consequence of the weakest hardware but as well the consequence of not having features at all more and more people want.

I know guys who'd still only buy exclusives for Wii U if it was on par because they want their party chat and achievements/trophies. Just two examples. Maybe the Nintendo fanbase isn't that much interested in that. But other  gamers are.