3rd party developers have no reason to like Nintendo. On the Wii, the top 14 games in sales were ALL Nintendo first party games. The top 7 games on the 3DS are all first party as well... 3rd party sales are generally terrible on Nintendo based systems, with the exception of a few lucky lottery winners, like "Just Dance".... which wouldn't sell nearly as well these days, now that the gimmick has worn off.
What's basically happened, is Nintendo's carved out it's own niche fan base, that's divorced from the rest of the gaming ecosystem. Selling anything else to them, is a really difficult task.
So you have the Wii U, with a small install base of Nintendo fans, who don't like to buy 3rd party games.... What developer in their right mind would waste resources there? Whether or not they could or not, is irrelevant... because it'd be a waste of time.