That sounds as if you're not a fan or proponent of the overlap of the two halves.
Even TDS' chair drill helps teach activation of the lower half ahead of the upper half...
Did I miss the memo where the "hips" are no longer part of the "pelvis"?
not really. You want the back hip to hit the ball. Hardly the same thing. But go ahead and explain why they mean exactly the same thing. If you rotate the hips, you lose your legs. ‘Hit the ball w your back hip’ is a terrible cue if you want to use your glutes.
why don’t you try the chair drill and report back. I think you watch to much video instead of trying things out for yourself.