Players leaving in comp needs to be addressed

Just played 5 games in a row with people leaving every game, this not only makes it close to impossible to win an evenly matched game but it also punishes you with around 25 comp point loss. Had 3 leave last match and decided to stay to see if I could lose less still lost 30. I should not be so severely punished for others leaving, especially when I only gain 20 to 30 for a win most times