If this happen in a game in my league, and the home team lost a tournament because of it. They would set fire to the officials car.
Retired EPL officials might say that they never called a keeper off the line but they started making the call on a regular basis a few years ago. It's hardly a rare occurrence to see that call now.
I think much of this may be because things slid down a slippery slope - ti's only cheated off a bit b/c of the potential consequences and the trifling offenses were not called - leading to more stretching and the ultimate law change that permitted lateralnmovement - my recollection was that it began to be called more after that change. (The slippery slope and concept of whefther to make the call is Alamo remniniscdnt of another heated thread...)
I was at the Portland-DC game last year when Hamid was called for this twice in a row, and my opinion then and still was that he was penalized for what people are talking about here - that he came forward, established a new position, and then took his step forward and dive. I get the sense that one step and dive in a single motion will never be called.