I understand the mentality, but if somebody's not comfortable give them their god damn space and go with their flow instead of whining about "Oh this is taking too long, so I'll pull for you".

It's starting to get on my nerves because not only once, but twice I've seen this and I'm not even at the supposed end-game content yet. Give Tanks a break when they're trying to learn the layout before asking them to do big pulls all the time like you do in Heavensward end-game content.