SE needs add a major penalty for not completing the objective as intended. Maybe cause the boss to enrage if objectives aren't met? People will fight inside the poison zones when told to move them out of it. People will ignore bubbles and full focus on the Morbol OR break all the bubbles instead of the intended ones. While guildhests had the right idea, there's no penalty for doing things wrong, so people think "why bother doing things the right way"?