I retract my Aikikai thing comment (if that is possible). Still, in martial arts things must be done for a reason or not done at all. I am wondering what the reason for stepping back is.
Oh, no need at all for that. I wasn't offended in any way by the aikikai thing comment (though I can imagine my quoting giving that impression).
I can't comment on the stepping back, but I'll watch the video again to see what you mean.