Honestly I wish this was a feature specifically because of FATE farming, some Jobs are, to be blunt, miserable to play during FATE farming, namely ones that rely heavily on gauges instead of direct cooldowns, like RDM, get their gauge completely deleted when you sync down, since I like to swap jobs a lot while doing FATEs for variety, it sucks a little to have a few jobs be like "Lol, lmao even", unless I limit myself purely to Living Memory and Heritage Found.