Onward to Patch 1.19

[Reika]

In which case the job simply becomes an outcast like blm in XI. If healing is more precious than nuking its better to take another healer to the dungeon instead. There is no utility, there is no demand.

They need to figure out some XIII type functions (stagger) to make nuking an important part of the gameplay. You can't just force it on a job and expect everyone to invite one to your dungeon if they didn't do so before.

Of course take 4-7 healers, because monsters dont have HP that need dropping right? Its not as simple as you think. Groups need X amount of tanks, Y amount of DD, and Z amount heals. Saying 'Just take another healer over the nuker' is the same as taking another healer over a lancer, marauder, gladiator, pugilist, and archer, because none of them can heal either.

And seriously, An MMO/Final Fantasy without a nuker mage job? That doesn't and shouldn't exsist anywhere.