I think most people will agree that pulling as big as you can handle and moving immediately after each pull is the way to go. No one likes unnecessarily slow dungeons. From your explanation, I can only say that he was playing correctly, and the only mistake I can see he made was not checking if his party was with him before aggroing. But you should have all been there by default. "But, but...I was typing. Why didn't he consider my circumstances that I kept to my self". No you were the bad player in this situation.

Not that it's a situation to get worked up about at all, you just wipe and go again, but since you're attacking him unjustly I will defend him.