Every week the league offices receive up to 10 plays from every NFL team that are to be further reviewed. The Dallas Cowboys sent 10 plays from the Cowboys-Lions tilt where they thought the officials made bad calls.
Seven out of 10 of the plays they selected had penalties that should have been called on the Lions. Most notably, an illegal hands to the face that knocked offensive tackle Jeremy Parnell's helmet off. There are missed calls in every NFL game and the league hears about them every week, however there are no asterisks in this lifem just wins and losses. These things happen every week, it just so happens that the Lions couldn't overcome the officials' miscue on this occasion.