First, there is room for NPC's and such that might seem dumb or silly if they are given good context and story which is something I believe is one of the hallmarks of OE.
Second, if someone really insists on creating a character that OE thinks is not appropriate, they can always shove it away to the bottom of a throw-away dungeon on the corner of the map.
So no, not worried. I'm more worried about what I'm going to do to pass the time until it's released.