I feel like the same could be said of HoTS but it just ended up being bland compared to LoL after a few dozen games. Battlerite has the same problem imo. For better or worse LoL has managed to keep things fresh for a decade and I think the 1-on-1 or 2-on-2 laning element is a big part of that.

League has ARAM for exactly that purpose (all team-fight, no laning) and it is fun to kill time or goof off but its not quite like the real game.