Those concepts where covered way back in Book 2. Maybe even earlier.
There were elements of CB/CA, but nothing like the obsession post Essentials. Gary isn't the first to point this out...Paul Heyoka's recent inflammatory video posting ranted about the divergence of PMTS focus pre-and post Essentials (it's too bad he was so phlegmatic in his post because there was a lot to discuss in his video, and with one of the most vocal HH supporters of the past). I can't help but Notice that Clendinnen who was on board (Black level) and Brooksbank (blue level, which is funny since he is a better skier than all those guys) back with the expert skier books, went a very different direction in the Essentials era. Clearly, something in HH's focus changed (whether it was for the better or for the worse is up for debate--I have no input in that arena).
'Bush, what is the best way, in your experience, for Lynn or anyone to develop dynamic, powerful and supple upper/ lower body separation (especially in the hip joint)? It's ok that you don't like HH's program, but I'm interesting in hearing your program. It is clearly working for you, how about your students?