Gotcha. Guess that makes sense. Although to be fair, you could call Williams for a foul, too. I think it probably only needs to be called if someone gains an unreasonable advantage. Just don't think Hurt really gained much of an advantage for that split second when you factor in that he was also at the baseline when his initial movement for the rebound began - and he jockeyed for position a good 6+ feet while his movement continued to be impeded. I know, I know. It's just a typical basketball play. In my interpretation, it's a play-on.
