Imo there should be a report option for someone to is refusing to cooperate with the team.
There is a report function for Refusing to Communicate with the Team, which states: Applies to any player that refuses to use chat or pings.
There is also a report function for Leaving the Game/AFK, which states: This includes logging out or exiting the game before a match ends or stand idle for long periods of time or refuse to participate in the match at all.
But often, I come across things that should be reportable, but don't quite fit either of these categories. For example, I have seen many times where people are refusing to gank someone because of a grudge developed through chat, or refusing to give mid blue without any excusable or logical reasoning, or an adc/support that refuses to play in bot lane because of a hate for his/her support/adc and will try to forcefully take over another lane, stealing farm and xp from that laner and leaving bot in a 1v2. Usually they are fairly toxic while doing these things, but it doesn't seem right that I can only report them for toxicity, especially when sometimes they actually aren't that toxic and are reacting to the stress of being heckled all game by someone else.
If Refusing to Communicate with the Team was slightly altered to Refusing to Communicate/Cooperate with the Team, or if some other section was added/altered, that would solve this problem.