"If in the beginning, as a beginner, a pupil was told not to turn into the Basic Steps, but to turn at the end of. Maybe this argument might not be on the table. I know what I was taught as a beginner. For a Heel Turn Reverse Turn Foxtrot. We were told that at the end of the first step we were told to still be facing diag to wall and not to try to turn the step half way through the step."
Such an oversimplification is not ultimately workable. It is true that the upper body must not turn until late into a reverse CBM step, but something still has to turn at the start of the step if there is to be CBM, and that something would be the hips.
In practical terms, what happens is that the back knee tucks behind the front knee as the body projects off the standing foot into the step - but there is minimal rotation in the topline until the time of arrival over the newly placed foot.
If the lady is going backwards, she may find it useful to also turn her head along with her hip and foot, so that she is almost looking over her yet-unturned shoulder. The remainder of the heel turn action is little more than a simple neutralization from this initial body position.
"Boys and girls both had this to do, because there were many steps which later has the same technique.As you can see I got a bit of a roll on . All of this was not directed to you, but to the Society of Deliberately Twisting Spines."
Ah yes, the etenrally paused at half development society lecturing their betters... what you have learned is a beginner approximation, but it is missing the details of the full ation.