Some White Mages like to hang on to the "but Cure III" card, because its about the only niche skill left and it's not even necessary. Astro had no problems substituting Cure III back in Midas (A6S/A8S) and Creator Savage (A11S) with Helios as-applicable. Plus we have stuff in our kit to lessen the damage impact such as CU/Disable that WHM can't even do.