I suspect Hitohiro posture has its cause in his tanren bo work.
Here is a clip
of practitioners of his style which I think explains what I mean.
This is exactly the posture I'm talking about in my original post/question, which still stands.
What is the purpose/benefit of this posture? Does anyone have an explanation?
To me it looks too forward biased and the bent torso does not facilitate rotation about your body axis without excessive head movement. Again, there is no disrespect intended, I'm just looking for information.