To take Mekantos's side of things, why does a potential staff member need to demonstrate the ability to churn out an area file if:

1. He's already shown a grasp of game mechanics.
2. He's already shown exceptional ability to role-play.
3. All he's going to do as a staff member is run quests and provide mortals with IC interaction?

Is there a downside to having allow certain staff to exist with a very narrow focus?