This is now a reoccurring bug.
One team is getting completely disconnected from the game.
This happened on three separate occasions, twice to an enemy team and once to my own team. The team side did not seem to matter, and all players would be forced out one after another. This is clearly an issue of a bug being heavily abused, making an absurdly unfair advantage in ranked play, and I am sure that it is not limited to ranked queues.
I happened to have been streaming during these games, and am in the process of rendering the video to upload for further viewing.