I don't think that's the real cause for the Wii U's woes. Consoles from the big players are almost automatic buys for a lot of people, just to get access to the new games. They have to screw up to change that. No one was particularly bothered by what the Wii U offered, even though it wasn't really compelling.

I hold that the Wii U was primarily an advertising problem, with a dash of the Wii itself being an anomaly.