Actually, after much research and...okay, I lie, there was no research. But FATAL has one redeeming Factor.
The FATAL spell pretty much ends the world, right? Well, imagine you die and are trapped in hell, with your eternal punishment being forced to play in a FATAL campaign. Well, all you have to do is eventually manage to cast the spell in game, and the game would end. Surely even the most coldhearted fiend from the darkest pits of hell would be obligated to release you after such a torment. All the other damned souls would see you marching to freedom, and whisper "What did *he* do to get released." And when they discover what wretched task was yours, they would shake their heads and return to their own torments, as none would risk playing FATAL, even at a chance for redemption.