I fully understand breaking the plane. But your cut-and-dried interpretation is not complete - it disregards the arm in front of the ball. The arm broke the plane. The ball did not necessarily do so.
And the line judge signalled fourth down until Ben moved the ball forward.
Don't make yourself look dumb accusing others of not understanding something.
I'm not saying that the Steelers didn't win----a win is a win no matter how bad the officiating-----but to hear so many of them insist that the officiating wasn't that bad just tells me that they desperately want the win to not be so tainted. Other than Steelers fans and the NFL itself, hardly anyone is saying the officials didn't screw up this game.
"it disregards the arm in front of the ball."
No it doesn't. As I stated, the elblow is clearly on the other side of the line. With the ball tucked behind the elbow it can only follow that the ball has broken the plane.
Don't make yourself look dumb by being dumb.