Wait so dpsers / tanks dont have physick, stoneskin, bloodbath and second wind on top of pots ? Theres nothing wrong with cleric stance since it diminish a lot your direct heals. Healer in cleric isnt actually healin at all, and I sincerely doubt that eos healin one single target every 3 seconds is actually much of an imbalance since the pet can be killed quite fast.

Healers in final fantasy ARE NOT pure healers. Be it white mage or scholars. Its your definition of healer that is flawed at the start, aka, a heal should only heal and have really low dps which is just wrong, otherwise Whm wouldnt have one of the best AoEs in the game