2 AFKs (RANKED), Loss of LP

I just played a ranked game. My team was great. About 10 min into the he game, our JG Amumu left the game. We continued to rek the team despite all the 4V5s, until our ADC, Caitlyn, left the game. This left my team down 2 players. Literally, 2 minutes later, the enemy team wiped my 2 teammates and I, which led to ten pushing and then further on, losing the game.

Why don't Riot created something like remake, but t doesn't end the game, instead it could be like a loss prevention where the non-AFKers don't get punished and the AFKers get punished normally. Also, giving he enemy team the win and they get their share of LP. Why should players like my 2 teammates and I suffer from other people's "Away from keyboard's"

I really hope Riot does something about this cuz it would really benefit the game and not piss people off like me.

PLEASE