Great drills. I have always told my High School and Junior Team Players to practice the way they want to play. Every shot should have an intended purpose, pace and placement towards a point winning strategy. Your training videos always provide a world class example of how to train and coach.
For some reason his forehand looks “wild” to me. Is he over rotating, opening up to early or a little stiff in his upper body? I can’t identify what is giving me this impression.