Better Placements?

Hi there. I just thought that placements are quite anger-inducing and probably will raise the blood pressure of many individuals. I propose a small/kinda big change. Instead of counting wins as such a big factor, I believe it should be based on personal performance in general. This being CS, kills, assists, tower assists, pings etc, or something like that. In a game like LoL, all it takes is one troll or idiot to throw an entire game. Placements, being so important, don't have any second chances.

 For example, if you are a somewhat skilled player (let's say, Silver 3/4 worthy), but you get a troll in your first placements, feeders in your second and third, a guy whose Internet "cut out" in your fourth, you have effectively landed yourself in Bronze. But...it wasn't YOU who crashed the plane! Of course a large majority of the players in Bronze are just "bad," it's really unfair to those who are thrown into ELO Hell, and are held down. In my first placements game, I thought I did well in top lane, going positive and helping roam. Then the ADC got angry that Thresh stole one kill, and proceeded to afk for 5 minutes. After that, he/she was basically flaming everyone for whatever reason. Apparently Vayne mains are like that, but it cost us a game (and me 1/10th of my placements.)

 Anyways, I think that placements should be free of the feeding, trolling, AFKing, flaming shenanigans of a generic MOBA. Give players an actual change to prove themselves!