I don't tank much, but when I do, I seem to get healers like this in df often. I have no issues grabbing and holding hate on trash mobs, but on bosses that summon adds... Ugh. Is it so hard to stand still? You might get punched in the face a few times, but if you run around then you'll get hit far more as I have to unmend them one by one instead of nailing them all with a single unleash...

One memorable moment was in Neverreap where the whm failed to keep the tank alive through a large pull between 2nd and last boss... the remaining mobs aggro'd the whm, they had the option to a) raise the tank, b) heal through the damage while me and the other dps finished them off, c) holy, or d) any combination of the above. They went with option e) sprint all the way back to the beginning of the dungeon.

I think fluid aura/blank are fine if it interrupts a skill the enemy's using, the enemy can't be knocked back, or it finishes it off... otherwise... yeah. I ain't chasing that.