Main problem with Atma is that it's not quantifiable progression. I'm all for making something a "grind", in the spirit of making someone "earn" it, but we shouldn't be at the mercy of RNG.

Having something to look forward to helps ease despair, because I know many people who don't have an end-game FC or can't get access to sands or oils; so ATMA is their only option. Right now, for the so called "casuals" that SE is pandering to, they are locked out of end-game progression. I think that a small change could be to give a player a buff (lets say a 10 minute, stackable buff) that they get each time they complete a fate, and it's specific for that zone.. Each stack of the buff increases the drop rate of atma by a minuscule amount, lets say around ~1%. This way, even if it takes 100~ FATEs, players know in the back of their heads that it'll take AT MOST ~100 fates.