Well, it appears we are all correct on this issue. The NFL confirm the penalty for the blindside block was the correct call on the field, but they chose not to fine Heath for the hit. Typically the lack of a fine means the call was incorrectly applied. So the beauty is no matter if you thought it should have been a penalty or not, you were right.
http://profootballtalk.nbcsports.com/20 ... ine-heath/