Nintendo is doing what almost every game company should be doing.

They are using there old franchises even though they aren't exactly best sellers by not trying to make them something they aren't.

I guarantee you if Sony tried to make a Sly Cooper today they would make it this massive deal and spend frankly to much money on it and if it failed ( which it probably would ) they would ditch the series again.

Rhythm heaven and Tomodachi Life fans didn't want a game that "redefines" the series, they just wanted a new game and Nintendo gave them just that, nothing super big or expensive, just a new entry because that's all they needed to do and that's all the fans wanted.

Take notes games industry. Nintendo has problems but this ain't one.