I remember that play, his helmet was tilted upward and he obviously pushes it off to start his celebration.
I agree, I was going to mention this, but just had not done so as of yet.
His helmet did not come off by itself, he "helped" it off by tilting his head back and shaking it off.
Reminds me of some of the kids I coach in youth baseball after they hit a double or triple, .. or maybe they are trying to score from second in a big game.
I see them flip their heads back as they are running in an effort to flip their helmet off. Kids seem to like finishing a play without their helmet.
They think I don't see it, .. the Commander probably is no different than my kids. LOL
But his helmet did not come off by accident.