Losing LP for afks

So I just lost 20 LP in a game because someone never connected the entire game. I realize a 4v5 game is winnable, but it's extremely hard and in most situations winning is nearly impossible unless there is a huge skill difference. Is there any way the amount of LP lost for the losing team could be reduced? Maybe cut in half or something if there is someone that is not connected to the game. It would punish people a lot less just for happening to be placed on the same team of someone with bad internet, or maybe someone who just leaves after the enemy gets first blood (I've had this happen a lot less than just disconnects, but it still happens). I just feel its unfair for such a big loss to come from something you can't always control.