Game canceled but then not

I just had a match where a teammate left in the first 30 seconds of the game. The game then said the match will be canceled in 10 seconds. When the 10 second timer ran out, the message then changed to say our team will be penalized for leaving. We had to play the entire match 5v6. This is a ridiculous bug and after waiting 10 min in a dps queue, no one wants to play a game 5v6. The leaver system in this is game is a joke.