At the beginning he mentions how dangerous it is because of the fumble risk... I assume he's aware of the fumble risk because of number of times it was a fumble in practice... But those are all on the cutting room floor. Also edited out are all the times the lateral was good but the return man didn't get any yards...
Also, in the final play, there are two user players on the same team. They may have meant for this to be used in Team Play.
Later