Loss Prevention System for Teams with DCs

I have played MANY player vs. player games, all of which have ranked systems. Yet still, League is the only one that does not accommodate to unfair advantages. I'm sure there are other games that don't as well, but example, I used to play WOW quite seriously, and when someone DCs, the Rated PvP content will end in X number of minutes, if no team wins in that time, it is a draw. THIS IS FAIR. It gives one team an advantage for say, 2 minutes, but if you can't close out the game, that sucks, you weren't good enough to win. But the difference is in those games, you do not consistently get stronger with time progressing, so by riot allowing these games to continue, it is only diminishing the 3 man team's chance of doing anything. Since every minute goes by you become exponentially more and more behind, it is quite unfair. Yet I lose more LP in a 3v5 since 10 minutes in than i gain in a 45 minute win. This does not make sense. Ranked is supposed to be based off of skill where everyone starts on a equal (relatively) playing field. Riot should sincerely consider adding an in depth loss prevention system to accommodate to the people who fall victim to the DC teams. If its a 4v5, it is still difficult but winnable, most of you have probably had that 4v5 turn around to win it. 3v5 is completely different. What riot should consider, is that for every person that is DCed on your team, the people that remain take a loss still, but at a % of the original points. Example, each person is 20% a team. Lets say your loss would have been -20, but you had two DCs. Instead of fully penalizing them, make them take 60% the loss so -12 pts instead. A simple, (Base Points Lost) x 1(.2X) where X = number of people reaming would make it a lot easier on the losing team. The winning team can still take points or you could use an equivalent idea for pts gained. If the DC is intentional, it should be full points lost, as it was your choice, but when people lose connection due to things out of their control, you should not be penalized for such a ridiculous amount of points for such a ridiculous reason, this does not represent skill in a ranked pvp system. Obviously my idea is not 100% bullet proof but it is a basis for an idea that could work and really make a difference in the LoL community. Just my 2cents on something that is a basic fundamental aspect of all rated PvP systems.