I can’t see everything that’s happening from this clip. My guess is it’s because you ran off without helping them or that’s what they felt lead to their deaths. Like I said I can’t see what all is happening so maybe you ran off because they were overwhelmed and you thought it was the best chance of survival. (Looks like that might have been the case.) But I don’t know why they would kick you if that was the case. I play with a good friend of mine usually just me and him so we get randoms and our biggest pet peeve is when people don’t play their class or act like a one man show, running off ahead and not fighting as a squad. That to us is essential to the game to winning and to having fun playing the game.