I think that there is some zone-by-zone drop rate mechanism working behind the scenes. I've been working hard at Thanalan as well, hours and hours whenever I can spare the time and have seen nothing. But as I was leveling other jobs in FATE parties, La Noscea always seemed to drop for people quickly. I'm looking forward to it, but I still think something should be done. Perhaps they should cap the amount of FATES in a zone - 30 FATES with a gold and you get a drop whether RNG gods love you or not. I don't think that's unfair, even make it 50 if people REALLY think the grind is somehow indicative of skill and necessary for this dated content that is just a roadblock to the next stage of the weapon (meaning the current leg of the quest isn't EVEN current, so why do people still argue it should be left the same?)