I like the off-tv concept.
But the rest was pretty obvious..
Bad choice of name... and the bad marketing confused consumers what it actually was. They thought that it was yet another addition to the Wii like Wii Fit.
Bad performance. Not that the PS4 and Xbox One were on the way, the System itself was pretty slow in the beginning. It was fixed later on, but the damage was already done.
Thus the incoming of the more powerful systems the major 3rd party developers dropped the Wii u support, because it was a chore of implementing those engine to a slower device. This and the lack of a huge installbase made it also risky to develop for it.
Nintendo also didn't really knew how to successfully implement the gamepad into the game where it's not being a complete pain (Starfox Zero)
Some first party games had to be postponed due to difficulties in development for HD. So they said...
Intel Core i7 8700K | 32 GB DDR 4 PC 3200 | ROG STRIX Z370-F Gaming | RTX 3090 FE| Crappy Monitor| HTC Vive Pro :3
