Does a college or professional team analyze video? You bet.
What I do is at the beginning of practice I set the video up on a tripod and when I am ready I just turn it on and let it go til the battery is drained. That way I don't get distracted during practice. I won't look at the tape until at least the next day.
Also I plan out what I am practicing on. Be it Bill drills, draws or what ever and I just stick to that. That way I can improve on what I worked on the practice before.
Take this with a grain of salt though. This is my first season even though I have been using video for years in the karate arena.