except that people who actually know the 'rule' know that once you've gone 5 yards downfield, you're no longer 'in the act' of making a catch. Therefore, you're a ballcarrier. Therefore, the ground can't cause a fumble. Therefore, it's a completed pass.
Then again, the replay officials couldn't even see the ball bounce on it's way to Cobb late in the first half, so how are they going to get something as simple as a catch correct?