Everyone else "Yay they gave us exactly what we wanted, and a nice normal name too!" 
Don't get me wrong, I'm glad they didn't do an Xbox and call it something confusing, but I was hoping this console could have it's own identity.
I'm happy for a more powerful Switch, it sounds neat. Still, I kinda was hoping for something more... Nintendo weird.
~~Okay maybe I'm just mad because I was hoping after the Nintendo Switch that we'd be getting a Nintendo Dom and a Nintendo Sub~~
see this is what I was thinking. the gamepad was kind of clunky for one, I don't want a whole ass tablet to play some features. did some kids have to vie with parental interests for video game time vs tv time? yeah, but also most kids have a tv in their room, I always did growing up as did my friends. so then one asks ok why I am I paying like £250 for a meh line of launch titles, and a gimmic I don't want. it also did not entice the casual market as you said; though I imagine they considered with the rise of mobile gaming that tablets would be a safe bet with the casual market, it just failed.
the name just feels like an easy out. we had the nintendo DS, nintendo DS lite, DSi, DSi XL ect and each of these itterations sold pretty well, with not so clear naming schemes. because people wanted a DS