nope, watch it again and keep in mind the following facts:
-line of scrimmage was just outside the 5 yard line, so the endzone is beyond the 5 yard cushion
-at no point does the defender look back for the ball, the receiver on the other hand is looking back for the ball
This is the best HD video I found of it...scroll down and jump to about 2:30 in the vid:
http://www.sbnation.com/nfl/2013/2/4...g-jim-harbaugh
the refs apparently don't know what holding is, as you can clearly see on the subsequent play:
https://www.youtube.com/watch?v=5-C8NZU-EqI