So says the NFL. I think they are correct that it was technically the wrong call. Given where the ref was, however, and the angle of the defenders head when he was in views, it was a perfectly reasonable call. It was only the defender looking up at the last second that would make it not a penalty but that was too late for the ref to see.
http://www.sbnation.com/nfl/2014/12/15/ ... ed-hochuli
http://www.sbnation.com/nfl/2014/12/15/ ... ed-hochuli