Seriously, though, I have met a few excellent climbers who are also good teachers. However, teaching someone in a workshop or on the jobsite is a completely different thing from producing an educational video. It's a totally different medium that requires a different set of skills to use effectively. That being said I haven't seen the crane video, or the Practical Rigging videos, although I have heard good things about those.
Edit: Actually, now that I think about it I have only met one excellent climber who was also a good teacher. Of course, seeing as how I haven't met too many excellent climbers that doesn't mean much.