I cant help but think they would have been better off launching on multiple consoles.
It uses the screen decently, but personally I wouldnt care if they just picture-in-picture'd it on the TV screen for consoles or PC.
There is limited supply of Wii U and it looks like its gonna be months before they become easy to find (based on limited production and high demand eg launching with mario game). There are some huge launch releases like AC3, Black Ops, mario which combined with the $350 being the best value (I would get that one despite not being interested in Nintendoland) buyers face some tough choices. I can't see this game selling more than low hundreds of thousands.
I was surprised how well dead island sold, which was also RPG mechanics, zombie based and they created a very similar style of slow mo trailer. maybe they plan on releasing on other consoles next year in a quieter release window