In general, the applied kinesiologist finds a muscle that tests weak and then attempts to determine why that muscle is not functioning properly. The practitioner will then evaluate and apply the therapy that will best eliminate the muscle weakness and help the patient.
Basically, but to the extent you can practice on yourself while training.

I don't think Tug meant exercise kinesiology but only kinesiology in the broad sense that you move and adjust your body while learning forms. Maybe some mild aerobic effect to that but obviously only a side effect.
Yes.

And sorry for being so angry, not having a good week.