I would have preferred to have the Vikings have the touchdown anyways, with the way GB's defense was playing, the Vikings could have run more time off the clock and just scored anyways since they would be inside the 1 yard line.
Similar thing happened in the Giants game though, when I think it was Jacobs who fumbled right at the goal line and that was challenged, but they did have one good goal line view from there, and it did look like he lost possession right before the ball hit the line, but that call looked like it could have gone either way; There were a lot of bad/controversial calls in that game.
Btw, the Giants RB's need to learn to protect the ball, I was getting a little frustrated with how many times they kept coughing up the ball near the end of the game.