Darin,
I agree with your assessment and I think you are not alone in what you saw in those action shots. As the fighters were entering the ring I saw the same thing but I thought it was due a camera being out of focus. Now those "blocking" (like you call it), I could not determine if it was due to a specific camera or not. There were other action shots were these "blocks" did not appear. It was more evident wen the shot came from the side and at close range. It could be due to bandwith limitation but I do not know enough to say that it was due to that since it happened a lot of times in action shots at close range but other times it did not happen. Also, it looked that the crew with the HD cameras were from Don King's production unit so VOOM was just getting the feed (I think). It could have been very interested if D* or E* would have gotten access to the fight so that we can compare notes but that it's not the case.
In all fairness it was a great event. No SD shots were used. Everything from the locker room to entering the ring, interview, and boxing training video was shot in HD in my opinion. Yes, there is room for improvement but otherwise I thought the PQ was exceptional.
And yes! I agree with you that people here would have been making strong opinions about that particular problem.
I made some of these observations at Satelliteguys.us
