https://www.youtube.com/watch?v=sje19RQ_euc
I think this guy basically nails why the Switch is appealling and to whom and why ports to Switch aren't a bad thing.
I agree with him, I think a large part of the appeal of the Switch is having plausible home console experiences playable anywhere and this is different from the 3DS even.
And yeah, I'd take a Mass Effect Trilogy on Switch for example. Also I do think that is exactly the demographic driving Switch -- older, experienced players who like games a lot and may even own a PS4 already, but we just don't have the time to play as much as we used to. Life changes when you're not a kid anymore and the time you can spend on video games changes.
Switch creates flexibility in how we play and makes it more convienant to play, but it's about playing those big, immersive games that you can get lost in for hours. Those are the games are this audience want to play, not smartphone games or bite size 3DS titles, it's just harder as you get older to set aside X amount of time in front of a home console, Switch changes that.