I completely agree that's a dance game. Similar way that Guitar Hero is a music playing game. It's not exactly a dance but delivers something close to dance feeling.
My brain can't dance, can't even perceive dance. When I see dancing champions perform, their movements make no sense to me and seem completely unrelated to the music they are dancing to. However when I played Beat Saber occasionally I feel glimpses of the feeling of dancing. That's pretty much as close to dancing as I can get.
To me it's almost more of a meditation game, similar to how Guitar Hero or other rhythm games could get when you got in the zone, but full body. On a hard track you don't have time to think, just move. If you get distracted, you might fail.
My brain can't dance, can't even perceive dance. When I see dancing champions perform, their movements make no sense to me and seem completely unrelated to the music they are dancing to. However when I played Beat Saber occasionally I feel glimpses of the feeling of dancing. That's pretty much as close to dancing as I can get.