I guess I am in the minority. I played junior tennis. I go to my kids lessons. I listen and watch and then during the week we go out and work on what was said in the lesson. I take my kids to all of their tournaments. I try not to be outcome based but performance based as best as I can. I know I need work in that area. For me the videos are good reminders of basic swing paths, the need for sound footwork. There is not anything new in the videos.
You are in the minority. I wish all my tennis parents were like you!