What specifically does he not get? He's worked with numerous big league pitchers at ASMI over the years, and some of his other videos are all analyses of pitching mechanics on high-speed video, particularly those of Mark Wholers, the former Atlanta Braves closer.
What could he have done to make these more useful?
Also, please note, you're right about some of this stuff being "dated." I think this video is from 1993 or 1994. Hard to believe that was more than 10 years ago ... Yeash!