Yeah it probably should've been its own new IP, which it basically was in everything but name.

Red Steel 1 was infamously sucky, but the second was excellent and to this day one of the best showcases of how motion control can enhance gameplay.

Even just a game that uses motion as well as RS2 would be hugely welcome to me. Man that game was a workout, after beating a group of baddies you really did feel like you'd just hacked and slashed your way through a tough fight haha. Felt great.

It didn't help that it required motion plus.

Come to think of it, No More Heroes 3 is an upcoming Switch game that will hopefully leverage motion controls beyond just the usual gyro aiming, at least if it plays like the first two.

So I'm playing Hollow Knight right now, and it's pretty good. One of the better looking Switch games out there so far. It's kinda funny actually, a lot of people seem to be criticizing it for apparently being 720p-900p (there doesn't seem to be any official numbers on it for some reason?) and how it's so noticeable, and I really don't notice it too much. You can sorta tell at very specific instances if you pay attention to how Ghost's (the player character) border light interacts with the environment, but it's not really at the center of the screen or anything. I wouldn't be surprised if it had dynamic resolution even, given how crisp it usually looks. Also runs super smooth, which apparently it didn't originally.

This is in direct contrast to Yoshi, which in my opinion, looked way more noticeably low res, even though it has the same/better resolution. I guess it's really dependent on what the title is.

Indeed they did, and with SUDA51 still at the helm I think you can rest assured it will still be batshit insane and gloriously juvenile in the same way that made the first two cult classics.

I'd say it's more similar in tone to something like Bayonetta, just with a higher dose of parody.

Nintendo's had a lot of "mature" games over the years; Bayonetta 1 & 2, Mortal Kombat 11, Doom 2016, Wolfenstein II, Witcher 3...

Yeah it's not an anamoly to be honest. Gamecube had some, Wii did too, even Wii U. There's definitely an argument for better selection, but it's not the novelty many act like it is. Particularly a port of a pretty old pc shooter. 

Yeah, contrary to stereotypes, mature-rated games aren't at all a rarity on Nintendo consoles. 

Nintendo themselves may not make them, but they're quite open with allowing third parties to bring that sort of content to their platforms.