Seems like a lot of unnecessary confusion for players that aren't used to them (might be new to the game or a specific job etc). Although it's still common to get healers who don't use Esuna, it still should be a more familiar name than the others. I'm not against unique animations, but names not so much. Also DPS casters use a number of role skills just like healers, so that's 7 unique names just for the same effect.