All I can was that the camera angle was not directly on teh goal line and the reviewing officials thought the ball "broke the plane" BEFORE it hit the ground.
The most telling part was the the Head Linesman came running in from the sideline with his right arm raised (indicating ball down outside the end zone for our non-hardcore fans), then suddenly changed his mind well AFTER the play and called touchdown. I agree that the replay did not show enough to reverse the call on the field. But, IMO the call on the field was suspect.
I have a "TIVO-like" device and we watched that over and over and over and over again and I defy anyone to tell me the ball even came close to breaking the plane...........the ABC commentators even were saying ti looked like a questionable call - even after review!