Possible Response to Disconnects in Ranked Games

I recently was playing a ranked game where the duo on my team left about 12 minutes in. Obviously, we lost. Whatever, I'm used to it. This did irritate me though as I'm sure people AFKing irritates us all. I really got to thinking about what could be done about it, because I don't think I deserve to lose 20+ LP because I can't win a 3v5. I think I came up with what I think is a pretty clever solution. Imagine if anytime there is a disconnect, the non-disconnecting team members receive a reduced LP loss (maybe like half or something), and that amount is placed on to the disconnected summoner(s) to pay. For example, summoners 1-5 are in a game. Summoners 1 and 2 leave early on. After the defeat, instead of summoners 3,4 and 5 losing 20 LP, they all lose 10, and then that 30 deducted LP is split to be lost among summoners 1 and 2 on top of the base LP loss. Everyone wins here... No longer will people lose out on as much LP because of an almost unwinnable situation in which they had no control over. Plus it will really discourage people from repeatedly leaving ranked matches. This idea obviously isn't flawless. For example if someone has a family emergency, someone doesn't disconnect for the entire game, a 4/3/2v5 is miraculously won, etc. I'm interested to hear you're thoughts on this idea, suggestions, and ideas of your own pertaining to the topic of disconnects.