Pittsburg fans will see that he clearly broke the plane. Seattle fans will see that he was clearly short. The replay could be seen either way, which is why the call in the field stood.
The Steelers would still have punched it in for a TD on fourth-and-half-an-inch even if it was overturned.
That's a good point, but we will never know now.
I agree here...but what doesn't make sense then is why the ref standing on the goal line signaled it short and 4th down changed his call as he ran closer to the pile, which is when Roethlisberger shoved the ball over the line while he was laying on the ground? The call wasn't made because the ref saw the ball cross the plane, he made the call because he saw the ball over the line AFTER the play.
The Steelers would still have punched it in for a TD on fourth-and-half-an-inch even if it was overturned.
They hadn't gotten it over the line in the 3 tries from the 1, you shouldn't be so sure they'd have scored a TD. In fact, they likely would have kicked the field goal to put points on the board.