I've kept an eye on the Switch and its library, and I have very little interest in those games. It doesn't help that the two Nintendo franchises I'm most interested in (Metroid and Punch-Out) don't get much love. Instead, it's another Mario platformer using the same art style as the last several, or Mario Kart 15 and Mario Party 23. Nintendo games are a brand of comfort food I'm not all that captivated by.
I don't think there's anything wrong with saying Nintendo is "kiddie", because they quite obviously make games for younger audiences. Nothing wrong with enjoying those games, of course.