Maybe they could add an item for seals that gives a small boost to drop rates for Atma... 10k GC seals or something like that for a 5% boost. You still end up having to farm FATEs, but it could make the whole process seem less arduous, and after you've been in 1 area long enough to farm 10k seals, it would at the very least make people feel more optimistic about it all.