The officiating matched the play. Never seen a penalty enforced after a play was whistled dead in which no flag was thrown. (too many men on the field for NC)
Only to be enforced after a clock review that confirmed time had expired.
By using the previous plays unacknowledged penalty, they were able to give NC another chance since a game cannot end on a penalty of that type, even though no flags were thrown nor was any announcement made by the umpire declaring there was a penalty on the play until after the review for time...
Spoke with Al Graning who is a former SEC official and was on the NCAA Rules committee for a number of years. He said they f-d up big time.
A game can't end on a DEFENSIVE penalty. The call was never that the time was put back on because of the penalty, it was because the replay booth believed 1 second was left when the spike hit the ground.
Rewatch the ending. The referee NEVER says that time is being put back on because of the penalty.
The penalty for "too many men on the field", only effected where the ball was spotted and had ZERO to do with time.
By your argument above, the penalty should not have been called IF it wasn't flagged, but the outcome would have been that UNC would have taken their FG attempt 5 yards closer.
Not to mention your original assertion above that you've never seen a penalty without a flag, after the play was blown dead....
Did you not see the end of the Tenn-LSU game this year? No flag, illegal participation only called after play/game over and the replay official called down to the referee that TN had too many men on the field.