Quote Originally Posted by Iscah View Post
Perhaps completing the FATE could apply some kind of character debuff that prevents you from doing another one for X hours?
WoW started doing that and it seems to be working pretty well. Some events give you a 1 hour duration "can't get rewards from this again" debuff upon completion. It lets people do the events locally when they spawn, but keeps people from constantly server hopping and overloading instances.