This. People acting like something like NSMBU is something special or ,,the best'' completely miss how lazy these games are. Slightly altering some 2D formula from 20 years ago for the fifth time in a row might technically make it ,,better'' than the previous games, but it ignores that previous Nintendo titles actually were either ground breaking or at least up to each generation's standards.
WiiU games aren't, by any stretch of the imagination. Which is why no one bought this console. You can re-release Yoshi's Island and add two new levels and it would technically be ,,the best Yoshi game'', but it's still nothing to be proud of.
Reviving DK felt fresh on the Wii, but rehashing the same thing with some quick HD skin on WiiU was just underwhelming. Sure, TF was good, because DKC:Returns was amazing and TF just repeated it, but hence it also isn't anything to write home about.
Mario Kart is the only one that at least fulfilled one of it's duties as a new gen game and at least offered great graphics, which unlike most other WiiU titles couldn't be mistaken for the Wii predecessor in Dolphin. But yeah, it was missing content and didn't even have all the menus pre-patches.
Bayo2/W101 might be the most ambitious WiiU games right now and they aren't even by Nintendo themselves.
Also, Pikmin 3 too was incredibly light on content. 7 hours in I get the water Pikmin, thinking the tutorial is finally over, but nope, here's the final boss... Pathetic compared to the wonders of Pikmin 2.