"At the end of the Feather Step we come into a completely neutral position. How could anyone possibly think that the side or shoulder would be in front at that point. This is also referred to as a balance point"
Because all ordinary positions in an offset hold are left-side dominated, the "neutral" position will be. So in fact will the positions that we call right side leading - they are still left-side dominated. The right side arrives first in such situations, but the left side is still dominant.
To allow the right side to become dominant, especially in a reverse turning action, is a FATAL mistake. The world has improved its description of the proper form of reverse actions quite a bit since the original days - and that is in part why the "shoulder leading" langauge has long ago fallen out of favor.