LP loss

Riot has finally started trying to stop people from being punished for uncontrollable things, with adding the Remake option, and while I realize that they can't expect people to play a full 20+ minute game only for someone to rage and then let the other team remake would be anti fun for everyone involved. But today I had a Cass get first blood then the enemies lane swapped, but mid ganked before sending their top mid, and when she died, she said "I'm not dealing with your lane bye" and left the game at 7 minutes into the game. I got demoted following that game. I just wish Riot had a way to ensure people like that got punished for the amount of grief they cause. Maybe a 1 week ban or even a 2 week ban, maybe they will decide they don't miss playing league and they will quit, making the community better.