Quoted from Astropin:
I have NEVER seen a flag picked up that late. Replay shows CLEAR pass interference. It changed the outcome of this game.
Guessing the picked up flag was so late because it took a while for the guys upstairs to try and decide if they needed to act then or if they would still be able to get the fix in if the boys went down by 10 that late in the game. They decided that if the Lions scored again, then they would have a tough time fixing the game and be even remotely believable, so they opted for the oops we made 1 bad call.
I loved how the commentators already started setting up the excuses "first time reffing together" yada yada.