House also believes the head and shoulders should stay slightly behind the front hip into foot plant.
It definitely sets up something that probably isn't good.
DM, you are correct. There are significant posture issues here. Inappropriate posture changes mean energy is being directed in directions other than at the target. We don't want that. Furthermore, inappropriate posture changes affect the release point in undesirable ways (e.g. pulling the release point back and making it inconsistent).
I noticed the glove swinging out to the side.
I didn't notice this myself but now that you point it out, it does look suspect - almost like a boat anchor back there. I've not heard of this idea of keeping the heel down. What is the rationale behind it?