You can play through it in single player (not sure if it has any unnecessary always online requirement, though). I actually feel like it would work pretty well on Switch as a LAN multiplayer game. Getting together a sufficient number of consoles and TVs to play local multiplayer on a game like this is generally pretty difficult, but with Switch it should be pretty easy to get a game together whenever and wherever you want.
The idea is great. I'd love to see something like this but I'm afraid Nintendo will handle everything through the internet. Maybe they could use some kind of special wireless connection though?