Promos and AFK player

When in Promos and you get an afk player < 2 in my case> I think you should not be penalized in loosing or loss of LP. I would like to see it where you get to redo the promo match. I have been in promos several times and lost to either infighting, someone trolling and purposely loosing, or people quitting because they do not like how the game is going.

This is really frustrating that when doing solo/ duo I am so dependent on the others that are just random not ruining my life.