Keep rotating so the low point stays ahead of the ball
The coach contrasts stalling the body, which lets the club's momentum bottom out behind the ball, with keeping connection and constant rotation, which moves the low point in front of the ball. Keeping the body rotating through impact puts the strike on the 'good side,' ahead of the ball.
Channel: PorzakGolf
Watch official source at 2:21Why this context matters
Coach demonstrating a 'bad side' stall versus a 'good side' rotation.