More group-think "everyone must play exactly as I like" or ELSE. We need SE to intervene, we need a "solution". No, you don't. If the healer is keeping everyone alive, they're doing their job just fine. Particlularly at a time where many are still learning all the new fights, or still levelling up, this kind of OP is not helpful. At all.

I think of all the customisations we've lost to this mentality. Adjusting a small portion of your stats, or adjusting accessories, spirit-bonding in dungeons, now kicking people out of dungeons for spurious reasons (the most usual one being "they aren't playing to my precise spcifications"). The next thing to go will be materia - because if someone has melded so much a single piece someone disagrees with, SE need to step in and restrict everyone. again. Dungeon queues are long for a reason - because too many people are trying to cram their own spurious rules onto every single tank or healer. (and dps, but at least there are enough of them to go round)

Here's a novel idea. Play how you want - and respect the fact that that is everyone else's right as well. If the job is getting done, there is zero reason to complain.