There is nothing here that is different from standard technique. I'm looking for the view of a "seasoned" dancer that shows how the technique is inadequate to describe the movements required at a high level.
As for your comment that lady moves later than the man, or she arrives first, that supposes that they move at a constant speed, but they don't. Both step on beats one and two, but the man has a faster foot speed and flight, as he has further to travel. If she doesn't move at the same time as he moves, she cannot achieve the body rotation that would allow him to pass.