Auto-balance experience points at the end of every stage

Something that I see very often in multiplayer games is one or two players carrying the rest of the team. Part of why this happens is because some players die early on, putting them at a disadvantage for the next stage. If they are unable to recover and die again, they are basically sitting out for the rest of the session.

There should be a server option that auto-balances the experience points at the end of every stage so that everyone is at the same level. This should, items aside, put everyone on even footing at the start of every stage.