I just played my second rank game and it didn't count, either. Our Infernus disconnected for about 30s and then a few minutes later the game gave us the red box "it is now safe to abandon this game" or whatever it says. So, I finished a HARD fought and hard won ranked game (25-5-25, crazy I don't do that well often) and it didn't even count towards my ranked qualification.
Edit to clarify: all 12 players were in the game and present when the box appeared in the upper right corner. It was a short DC for Infernus, but I guess ANY DC counts?