George S. Ledyard
Training is all about imprinting. If you start with chaos you end with chaos. Exercises which teach hesitation, back away, excited emotional state. etc are not what you want to be imprinting.
Technique which is merely operating on a physical basis is simply jiu jutsu rather than aiki.
People need to be very careful about how they design their training exercises because they imprint mental and physical habits with every repetition.
I'm not criticizing an attempt to develop better practice. I am just pointing out that the exercises used as presented do not necessarily imprint the right things. Students training this way will get very good at avoiding but will not develop high level skills using the principles of "aiki".
Extremely important points here, I think.
It's better to spend a lot of time exploring before coming to conclusions that may or may not be what one thinks they are....