A different opinion
IMHE too many people get confused when attacks are discussed.
If it does not look dangerous to begin with people dont recognize it as an attack.
IMHE too many people think that a strong muscular uke resisting is more dangerous than a soft uke surfing along on the technique all the time.
As if when one does not feel it does not exist.
BTW I move without being moved for I will never allow someone to stand behind me or to stand in my dead side.
I also move automaticaly when training with beginners. It is just another way to teach beginners the form.