hand on the fence is not holding the fence

What's with all these refs, even the reputable ones, yelling at guys to "let go" and "hand off the fence" when they just place a flat open hand on it? They're not even close to grabbing/holding the fence, their hands are clearly open, palms flat against it.

It's not illegal to touch the fence with your hands. Big John was just yelling at Bang to let go and his hand was wide open. I've seen this a lot lately.

yeah that was weird