As a levelling whm who's been healing every dungeon so far, I much prefer tanks go at whatever pace they are comfortable with. I've seen tanks do wall 2 wall pulls and through good CD management and holy spam, not need a single heal

I've also encountered tanks who barely survive single pulls, so much so that I have a heard time weaving in dps as they lose chunks of hp at an alarming rate. I would not want the paper tanks to do wall 2 wall pulls.

Besides, the single pull runs usually aren't that much longer so... *shrug*. You do you!