I would have left if i didn't - But i still think they need to fix it and that's why i'm making a comment in here.
The main reason for the Extended time is to give people chance to sort out their Burn Cards and Loadouts if they need to plus it gives the Lobby chance to fill up if people have left I don't know about anyone else but I Hate joining Halfway through a Game
I'm very happy with the timer. I don't have to leave the game to grab some chips, feed the cats, etc.