The biggest flaw with LoL isn't that it expects 5 strangers to work together
It's that it expects them to do so with no voice chat.
I know, I know, people are gunna come in here saying "NO VOICE CHAT, MY FEELINGS, IT WILL BE ABUSED."
Yet they ignore the fact that were voice chat to be introduced, a mute option would be introduced along with it, nullifying that argument in its entirety.