Don't get me wrong.
I don't mind Hildibrand but I never really cared for the quests...heck I still haven't even started the one from HW.

But the Moogle Delivery Quest actually held my interest due to us meeting different NPC's and also learning a bit about certain NPC's that don't have any screen time or much of it.

Like those Miqo'te Moon keepers that was ran by one male which was also a Fate, now that was pretty interesting probably my favorite quest from the moogle delivery quest.

If people really want to keep Hildy around, maybe he can just make a cameo in one of the quests, just not the focus.