I think it partially has to do with the fact that Mario tends to be the more "mainstream" of Nintendo's IPs, so there's more of a balance between forum-goers, families, and non-hardcore gaming fans that enjoy the series than stuff like Zelda or Metroid. Odyssey is a great game though, I enjoyed it the whole way through. Can't wait for 3DW + Bowser's Fury at this point, that should be a blast.
Yeah, it should. ^^ Still wish we got a new Wario game on Switch.