I agree that it should be fixed, but I also understand why people do it: Alliance Roulette is such a treasure trove of EXP that people want to be in and out as quickly as possible. The Ivalice raids in particular aren't really conducive to this. I don't have the math in front of me, but I think the EXP / minute for your Alliance Roulette is among the best in the game, so maybe if that was toned down, you would stop getting those people who just want as much EXP as fast as possible.
So I would reduce the EXP, and then have item level ignored when queueing. That should solve the problem nicely.
