As much as i despise potd it was brought in to address the leveling issue for dps due to how long the dps queue is.With Stormblood they added 2 more dps classes and no new tank or healer classes which made the ratio even more uneven than before.While fates are fun they are a bad way for anybody to level because you dont learn how to play your job.Atleast with POTD there is some hope of that.
I dont know if you remember around the Heavenwards release time and shortly after but there was a huge issue with people leveling to lvl 60 and not having the slightest clue how to play their classes because they skipped leveling through dungeons.
Fates need to have a bigger incentive but it needs to be one not based on allied seals or xp.That is the main issue.POTD shouldnt be removed but it should have the xp nerfed to create a balance in terms of what people sue to level their characters.