Of course, it was staged! Did it LOOK like he reached over, ripped her clothes and left her breast exposed? Yes it did. That was the effect they wanted. The 3 or 4 seconds it was on the screen wasn't enough time to see the snaps which showed it was designed to break away.
My children didn't even see it, as they were both out of the room. We do have decency laws. I want laws enforced. If you don't like the law, then lobby congress to shelve it.