Since disconnects and crashes happen regularly in this game, it would be nice for some option to unrank a game upon unanimous agreement among all remaining players. We have all wasted a lot of time sitting in a game waiting for one of two players who lost connection to each other to leave so the game can continue, with both reluctant to be the one forced out since they will very likely lose rating in the ensuing unbalanced game (if on opposite teams).
I'm not sure how difficult this would be to implement, but i just imagine a yes/no option that pops up for 15 seconds to unrank the game following a player being ejected from a disconnect. Or just add "eject and unrank" as a second option with no additional time.
It would make for a fairer rating system and probably lead to less wasted time as long as there is not much additional selection time added, which wouldn't even be necessary. Since you would require unanimous consent, this would only affect situations where there is no clear advantage for one side, and all players are reasonable...[so maybe not very often]...but it wouldn't hurt anyway. If you suspect someone just rage quit, then you vote no, and there is no downside compared to the status quo. It could help both in situations where two players on the same team lose connection to each other, and their opponents decide to not be terrible, or when they are on opposite teams. Of course it would not apply when a player dies and then leaves.