I would say it's pretty clear that you have never been in a high pressure situation with a good chance at breaking a WR. Cameras can be just one more distraction. (particularly if there are a lot of them, all pointed at you)
That's part of being a competitor at the highest level. If you can't deal with the heat, get out of the kitchen. All other high level athletes/competitors deal with it and move on. You think Kobe Bryant can request for no cameras? Lionel Messi? How about every single Olympian? Chess players at the world chess championship? Go players? The little kids at the Spelling bee competition?
Not dealing with something as silly as a camera is more a sign of weakness. And I hope I'm don't sound too harsh. Alex is my favorite cuber. His Roux solves are freakin sexy. But I don't get this no camera nonsense.