It was sarcasm (thought it obvious) for the WiiU exclusive. As for your other arguments...

 "Hori has said many times that DQ goes to the console with the highest installbase"

⇒WiiU is currently higher than ps4, even if its only for anther year. That said N3DS is evenhigher let alone 3DS. If installbase matters, putting on 3ds makes by far the most sense.

"Also if they had plans to support Wii U wih DQ it definitely would have gotten DQ heroes, which is exclusive to PS consoles."

⇒And yet DQX is Nintendo Exclusive (With a WiiU version 3 times), so is many DQ Games on 3DS as well as the ps2 port of DQVIII. Your point is also ironic as it is made from another company (Tecmo)

" Looking at Wii U, how could anybody believe that a massively popular game like DQ would be exclusive to Wii U when it can barely get basic 3rd party support?"

⇒Again, that doesn't mean much if a certain game could sell well. You act as if a WiiU exclusive DQ game would sell bad when DQ/MH/KH fan base is on both Nintendo/Sony Platforms. Look at DQX sales for wiiu (for clarification)

"Hori has also said they dont do multiplats as they like to focus on making the best game they can without worrying about a bunch of specs."

⇒Alot of people say things, especially SE. 

"Finally, SE is obviously making a return to theirs gen5/6 days where they consolidated their products and fanbase on PlayStation."

⇒This just seems to be an excuse, if that were true again you see DQVIII on PS4, but you see it on 3DS. Its MH all over again

1. Wrong and cherry picking. Square Enix said it will be their job to save to Japanese console Market with their popular IP's. That rules out handhelds. They want more Japanese on consoles NOT handhelds. Let me rephrase something, The most popular console. That aint Wii U, regardless you know SE has plans to sell overseas. There looking directly at just Japan.

⇒When did SE said its there job to save japanese console market? And how does it rule out HHs when they are bringing the biggest ps DQ to the 3DS this year? I know WiiU aint the most popular but you keep saying the same things over and over. Why did DQX just release again for WiiU and not PS4???

2. The entire series being available on Nintendo means nothing . This is the company that screwed Nintendo with FF7. Ya know, the platform that made FF, never to see another mainline entry again. They also did it recently - Star Ocean! entire series available on PS platforms but SO4 360 exclusive for year. Its not out of character for SE. Not to mention all that DQ consolidation on Nintendo happened last gen when THEY were most popular! Thats not the case anymore, so expect a twist this gen. Its already started. All the new non port DQ games will be on PS

⇒Srry but this doesn't make sense. Especially when DQ has 6-8 retail games for Nintendo platforms this gen while ps has 2-3. And you keep saying "not the case anymore" and it'll be PS exclusive from now on and again DQVIII is on 3DS! 

3. DQ was already on PlayStation. Its very similar to Atelier Rorona. Its was already on PlayStation platforms now letting Nintendo fanbase get a chance and they choose the safer console? Your looking to deep into that one. Not mention, so far we have not seen any PS2 to PS4 HD ports and that will have to do with fact that tech gap may be too big as Kojima hinted at last gen with PS1 - PS3, and making a PS2 HD port may just be like remaking the game. Remember, HD ports are suppose to cheap. By default that would only really only leave 3DS as best choice. One more thing, thats focusing on SE's new products, not old ones dude! Ports are just money nothing more nothing less.

4. Why is DQ heroes ironic? We first got hint of new mainline DQ being PS exclusive after the sales success of Heroes! They were so pleased the sequel was announced literally right after the first one released. 

⇒Ironic because Main DQ game is on WiiU this gen and DQ is a Spin (not made by SE). Also DQ had a spin off ths year made on a Nintendo Platform.... Soooo?

People jumping on the "DQ is for PS only train" now because of DQH/DQH2 and a very high chance of DQXI yet ignore DQVIII coming to 3DS make me crack up.

DQ releases this year

PS Platforms: DQH

Nin Platforms: DQVIII, DQX version 3, Theatrhytym DQ.

Not ignored your just looking to deep into it. When Se makes a handheld game of course they're going to chose 3ds by default because Vita sucks balls,  but that does not have any indication on what they do with console release! Developers have always been that way with Nintendo. Did dream drop distance mean anything for kh3 on Nintendo consoles? No, what about kh ds or gba? Will atelier 3ds bet Nintendo a console title? That is what I mean by looking to deep

good one. word on the street they are doing a final mix version for console

Did that stop the mainline MH4 going on to Nintendo Platforms? (MH mainlines always on PS platforms, only nintendo had ports)

Monster Hunter Tri? Not that it changes much.