Just my opinion, but I the BHD is doing more than is necessary. Alot of coaches that I've talked to just want about 5 minutes of video so they can see what the kids looks like, what his swing is like, see if he's got good motion, etc.
I agree you don't need music or "video garbage" (I think he means special effects, transitions, etc.). Although I did put 2 slow motion spots in it.
We're not pros, so just some decent quality video should be ok.
Here's the link to my kid's video. Its certainly not perfect, but it gets the point across, for the most part.
http://www.youtube.com/watch?v=q82CqWSwXgYIMO, the video should generate interest so the coach wants to see more. He may not see everything in a video, but enough to become interested in furthering the process..