So you're supposed to be able to carry a game alone, right?
The matchmaking system only cares about win or loss when determining an individual player's skill. So this implies that the one player can win a game despite teammates trolling, refusing to listen/group/communicate, or just plain feeding. So what happens when you're support? Are we just not supposed to ever play support because if your team isn't good you automatically lose? :P
I really do not see how it's fair to punish someone for getting unlucky teammates anyway, but when you're the support its exceedingly frustrating. There is no way for a low damage support to do anything when your team is being an average bronze team, so what gives?