I know people say it will be abused but they can disable it for groups of 3 or more. I have had 3 people deranking and two intentionally throw our of my last 10 games and it really ruins the experience. Almost no one wants to play a 4v5 but it is much preferable to a 11 year old that you have to mute screaming in your ear and running around flashing you with Pheonix or Breach.