Well healing on ff 14 is easier then most mmo's. You have a highly predictable rotation in raids to pre prep your spells for an incoming heal or absorb quickly after the boss effect takes off. Tank/dps is harder on here then healing. Difference between a bad healer and a good healer is the dps the healer pushes. Sadly healing needs to be more dynamic and a mix of reactive and proactive. Not just 90% proactive and resume dps.