Most of people's problems with Overwatch are entirely a PR thing and not for the quality of the actual game. This game is in the best state it has ever been but no one knows that. Hero Bans and Stadium are just recent changes alongside perks which make the game so much more complex in a good way. You can play 6v6 or 5v5, other than people still being upset over the PvE there are very few valid reasons to hate this game.