MOBAs are a much better view into what makes a game fun because the content comes purely from player interaction. Even if people say they are "toxic" (what a stupid, overused term) many more people play them than even the most popular MMO (which is losing much of its playerbase for reasons already stated).
Why would you fight for the game to turn into a professional waste station? How many previous high end raiders who used to enjoy this game, from this very forum, have given up on it because of the state of the current game? Ion has turned this into an arms race between developers and the bleeding edge and the game as a whole has suffered immensely for it.