You got kicked because you didn't pull enough, i got kicked cuz some idiot who queue with his friends thought it was more" efficient" to pull 3 mobs at a time. Just pull at your leisure and don't give a damn about what they think. If your game sense see you can pull more, do it, if you see they are very undergeared, pull 3. There's always gonna be that one douche prequeue'd team who thinks they know everything.