Yall are missing the point. He’s not coaching the dirty move he’s coaching how to stop the dirty move. You cant stop people from playing dirty but you can out coach them
"Just give me 9 reps... Those are nice squats!" (dude gets to 9, np) "phew!" "Now... now... Just hold it right there." (Starts loading plates again). "Now this is known as a glute-hamstring dominant squat, give me 9 more...!" "PHhhhhhhh....!"
That first drill is just teaching a lack of gap responsibility. They should be controlling there gap then looking for the ball not playing patty cack while peaking over his shoulder.