The "student" in the clip is an A.I. who recently wrote in other forum that Mike Austin had the yellow book and phoned Homer Kelly. He is of opinion that Mike Austin swing is described in the changes for the 7th edition.
I viewed the video of Mike Austin and he spoke lots of kinesiology term such as Flexion/Extension - Adduction/Abduction - Internal rotation/External rotation - Supination/Pronation - Plantarflexion/Dorsiflexion - Eversion/Inversion etc.
Interestingly, a term - "base of the neck" was also used there.
I hope LBG Pro will use TGM approach, including 7th edition changes, to analysis the swing of Mike. I believe that there will be an answer in TGM book for any swing.