Just to clarify, are you saying the law is rubbish, or that me saying it was the law is rubbish, because I can show you the law...
*assumes it's the former*
I would counter that with forward movement off the line is easier to see if you are staring down that line, which the assistant is, as...
Now the laws of the game state it is the referee's assistant responsibility to watch for goalkeepers "blatantly" moving off the line before the ball is kicked, suggesting a certain amount of early movement is accepted.
Also, that penalties only being scored that way is clearly nonsense. A...
He had just broken into the box on the right side (facing the goal), only just inside the area, and it looked like he had yet to change direction toward the goal.