it is the face of someone focusing on the work. as a cook everyone asked me why i am not smiling when i cook. " because this is what it looks like when someone is concentrating on their work"
The situation's solution doesn't requires it...besides that, he has been attacked everywhere, even before making a mistake. If you were him, on this scenario, would you smile??
He's literally complaining that he didn't win by a larger margin. The fuck is wrong with him?