Originally, it was because we didn't think anyone would ever exile someone they could ban.
Then, after we thought about it, we decided to leave it that way because the point of exile is the power struggle.
Basically, if you can ban someone, you're a moron to exile them. But we don't try to prevent you from being a moron.
I agree that exile is a last ditch effort almost. Though it looks like that you can not fine somone in exile either? I can understand not being able to ban but what is the logic behind not being able to fine?
