Why do you suppose athletes go along with it when a TV camera has their face in tight focus while the competitor awaits a potentially emotional moment?
Why don't they say, "Could you give me some space here, pal"?
Perhaps they realize they are part of the show and don't really mind what seems like an intrusion. It's their star moment, after all. And it could be that many athletes are savvy enough to know that sponsors are less apt to pay for endorsements from someone deemed unlikable or crabby.
So they play along and pretend they don't notice the camera waiting to see what happens to their face in the instant when they learn whether they are going to win a medal or whatever.
Of course, for all we know, a few athletes shoot the camera person a dirty look or worse. But I suppose that all disappears in editing.
It is a basic fact of modern American life that we are not supposed to think about the camera lens aiming right at the person on center stage. We're supposed to think the images we see just happen by magic.