i'm surprised we don't get to see "loss prevented" when playing 4v5

please read before u downvote it's just not fair for 4 people to loose a game because of 1 person i don't see the logic in this here's why i decided to write this thread i'm currently at 71% winrate with Volibear i played 14 games so far and won 10 out of them and here's the funny thing out of those 4 games i lost ,there was an afk on 3 of them http://i.imgur.com/Qb7uBtv.jpg http://i.imgur.com/eEQzLqE.jpg -the tristana went afk for 25mins then came back when they were at our nexus and said "sorry pc crash". -the ezreal told us in champ select that he's going to go afk at exactly 20mins and he did (i'm not planning to dodge on series) he said "enjoy the loss" then went afk. -and the jhin joined the game 15mins late after his support got screwed playing 1v2 and started blaming people. i'm really surprised we actually loose lp and mmr because of these people i know it's not riots "fault" but they're smart and i'm pretty sure they can figure out something to avoid such incidents