The other thing with the Wii U was while it did have some really good games, they were for the most part not the kind of thing you'd buy a console for.
Take Tropical Freeze; as excellent as it was, consumers tend not to want to buy a $300 HD console to play a 2D sidescroller.
It's first party games were mostly the sort of thing you buy for hardware you already own, it had very, very few killer apps.