Solution for players that want to Grow in ELO!

We all have those games where mid-game someone gets disconnected or from the start one of your team mates does not connect and for some weird reason you can not remake the game. I thought of a solution to this. so if some one gets disconnected why do the whole team have to suffer from losing LP? what about making a timer that if a player is disconnected for 10 minutes or more the whole team can forfeit and will not lose any LP (or they will only lose 50% LP or something that can keep the gameplay fair). also there should be a higher consequences for leaving a ranked game. for example the person that left a ranked game will not gain any LP for the coming 3 matches (or something I'm just putting in numbers, it's more about the idea to keep the game fair).
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