I agree with the sentiment... but you do this campaign, you say WE WILL MAKE A WII U version, because YOU want it... but only if we get THIS MUCH money. And then you say, "Eh, nevermind". The statement isn't, "We will make a Wii U version, if you pay us enough AND the system isn't dead".
Personally, I have no intent of ever jumping on the bandwagon for a big hyped Kickstarter game ever again. That's 3 for 3 with mismanagement and shit because these big name devs get too big for their breeches and don't have a publisher to tell them "Don't make these promises, dumbass."
Maybe I'm cranky, maybe I haven't had enough coffee this morning. I don't know. I agree that it doesn't make sense financially to release it for the Wii U, but I was looking forward to playing it on Wii U.