Unless you can show me indisputable evidence that Pigs hand lost possession before the stripe,  I'm absolutely blaming the ref in the booth for throwing this game.    
They know the rules and had plenty of time to review.    Pig possessed the football reaching the plane while turning the nose of the ball out and let go.   Touchdown!     NOT one shred of evidence, much less 'indisputable evidence' exists showing he lost possession before the plane.  Fingers and thumb on ball, no separation... That's robbery in plain sight. No excuse to overturn from the booth.