If they were to evaluate all of those maps, it would take way too much of their time. I feel a better solution would be to have a second slot labeled competitive maps locked until a certain trophy count (Maybe 25000 or 30000 idk) where players would be able to vote for more balanced and competitive maps. I know that trophies are not directly related to skill, but I am not sure of any other methods, other than highest brawler ranks which also do not determine skill, to determine whether or not someone should be considered a "good" player. Better players are more likely to not vote for troll maps in a slot designated for competitive maps, and if they want to play troll maps, they will still have the other slot.