sadly no!
you can get over 100k xp in a fate in the later areas something needs to be tweaked to make dungeons better! they're so well designed i feel they are not getting the attention they deserve
but it's not the case

ideas to make dungeons more appealing

-nice chunk of Gil (offer no seals you get those from fates)
-more exp
-mini dungeon events
-faster Q timers for dps --> JK that will never happen :P