Bold part is the only situation where he might pull, and that can generally be sorted with a pre fade, personally i am more of the opinion this is a slack tank who is more suited to heroics than raids. Raiding it all counts, and on single target a spriest pulling is more shame on the tank than the priest in my view. Sure the priest can help, but it's very easy for the tank to deal with and if his not and your coming to a forum to complain about it, there is a larger issue with your raids than over eager dps wanting to get all they can out.