You wouldn't take away the medal if a winner didn't sing, would you? Maybe the winner wants to savor the moment and the singing would be a distraction.

Besides, there are much worse things the gold medal winners could be doing. For example, winners could pose like the Incredible Hulk, could attempt to spike the medal, or could do a victory dance like in pro football. I hope we would all disapprove of these things.

I'd say if the gold medal winners want to stand silently, let them.