I'm really thinking that they may decided to not enforce this rule any longer. On my last trip, a friend of ours, who is a professional photographer, brought one of his "professional camera" with a camera case full of lenses and other fun camera stuff. No one said a thing, even when he stopped every five feet to take pictures. Castmembers had to have noticed.
All in all, i would not worry about it.
I hate to say this, but the staff at the security check points are not exactly the brightest.
I have had issues with them before too, but for different reasons.