Low levels will be left out of raids due to the possibility of bot abuse, for example. A level 10 botter gets a ban hammer, a new low level bot will appear quickly due to the low level cap being fast to replicate.
But if a high level like a level 61+ botter gets a ban hammer it will be very hard for the bot user to make a comeback.
And making this type of a raid a high level zone exclusive will encourage a lot of players to come to endgame.
Not only that, this might even help developers find bot users fast incase of any suspicious activities during raids.