The review of the punt spot was bullshit from the jump..the pickup of PI flag is bad because they claim ball was uncatchable...the ball in the end landed pretty close to Merriweather, and if he's not interfered with there is no way of knowing if he comes back and catches making everyone say 'oh I didn't even think that was catchable. Picking up that flag is bullshit because that is the purpose of the rule.
The targeting was correct call, can't play the hardly called crap...show me another play in this game where a Duke player did the same. He dove at the ball carrier, intentionally put his head down and struck him with the top of his helmet. It's a penalty, end of story and it should be. And if we were coaching our defenders better we would be seeing better tackling and not seeing guys putting their head down.