What is WHM's true identity?

[Nekotee]

To me, white mages the only actual healers on FFXIV. Sch and AST seem more like healer based support jobs. All are capable of healing but it seems to me that WHM excels at big numbers from curing hp, where as AST and Sch do more to lessen those healing numbers from even being needed and bumping dps numbers more than white Mage can.

Which is why whm is less and less attractive due to the need of mitigation in fight
They all can heal

But big number are useless if the target die instantly
You can't heal dead body :S