You guys seem to be missing the point that, although he wasn't down on the mat ASAP, he can still clearly see that the shoulder is being held off the mat. It's not hard to see. You can see that from above, the side, etc.

If you haven't ever officiated I would like to extend an invitation to each and every one of you guys to join the brotherhood of officials. Send your $5 to Mike Juby and get registered and go from there.