What people find unappealing in FFXIV imo is mostly related to DoW and DoM and the bland battle system. DoH and DoL seem implemented well enough, they're fun to play, in my experience, and seem to have been more thought out than most crafting/gathering systems you see in other MMORPGs. The Job System is going to be built on top of the existing Class System and cater to those who have been craving for more class differentiation, and strategy in combat. DoH don't have this issue, so at least for now, I don't see them fixing something that isn't broken, by most people's standards.

Though group crafting and the making of actual visible changes in the world, be it ships, airships, infrastructures or any kind of mechanized mount, maybe even something like an instanced besiege sort of things where crafters had to fix damage made by monsters while DoW and DoM fought them off would be a great idea to implement in my book, I would totally be on board with it.