If you disable cleric stance during combat, when would you use it?

[Risvertasashi]

Take away Cleric Stance, and healers are left with largely a waiting game, playing whack-a-mole with HP bars, then going dormant until the next burst of damage. If healing posed more of a challenge that actually required you to keep your wits about you, this would be less of an issue, since healers would be occupied anyways.

I'm going to take a wild guess that you haven't done t13? Or really, any fcob where people make mistakes, or any coil pre-echo...

Not that I disagree with the premise of your post, but there are fights like this in the game. Admittedly it's not really applicable to dungeons.