You don't have to fully play a game in LoL to tell if you have a group of idiots, regular game or Aram. There are obvious signs you just stepped into stupidsville and no one should be forced to spend the next 20 minutes with anyone that they know aren't worth talking to let alone playing with.
Also for those with either private ban manager programs or tracking the completely toxic people around that they don't ever wish to play with ever again, this shouldn't just be forced upon people. Seriously think about it, people are willing to wait 30 minutes between games for a game that only lasts 20 minutes sometimes, this should say loads of how bad the people are around them.
Sure you don't like crashed games, I don't like crashing them, but dealing with people who have no wish or desire to improve or listen to criticism isn't going to be a good game for anyone. If you are experiencing that many crashes, odds are you are doing something wrong, but I guess its easier to complain then to look at yourself.
Just so you know if Riot trys to force me to play with everyone, I will quit, there is no enviorment where playing with stupid people is enjoyable, and you cant make a game fun when the people you play with don't seem to care at all.