Your point seems to centre on the idea that most people don’t have to luck to get an even distribution of atma so you can often be stuck in OC with 3/3/3/4/3/0 and the zone you have zero from just won’t spawn anything. This is agreeably pretty frustrating and annoying because Bozja already fixed this problem by when it had in instance zone based currency there were usually fates up in every zone.
However this was already internally compensated for by the fact that the DT fates only drop a single type each so you can seek out ONLY the one you want if you have an uneven distribution.
So it’s really easy to just play OC till you have a distribution that looks something like 3/2/3/7/6/1 and then either choose to target the zone fates for the remaining ones or otherwise just keep grinding in OC until you get them by chance while levelling up phantom jobs. The chance of not having all the atma by the time you are +12 is astronomically small