This has been a prominent issue that has not been fixed. I've gotten removed from matches because of bad servers or the router hiccuping, forfeiting me from winning or keeping my streak.
This problem demands a fix and the best way to do that is allowing people kicked to load back in.
Update: I just got a competitive suspension because of this absurd system.
Update 2: Got lagged out of another game and received a second suspension. Hooray!