You just described the part of Brian that oh so many did not see, or rather, did not get the opportunity to see. He was a showman at times, but those times were not the majority. In person he was always willing to listen and teach. Yes, part of his job was to sell tools, but he really wanted people to learn about the capabilities of the tools so that they could make the best decision for themselves. When you were talking to Brian, you were the most important person in his world at that time.
Also, while away from the camera, it was best to stay out of the way when he needed to get something done. He would often come in on weekends to get the training room and materials ready for training sessions. If he was on a timeframe he would find a way to very politely, and naturally, urge you to not try to help because he had his plan and routine and wanted everything to be just right.
Brian might not be at Festool anymore, but he is still around, and I'm certain we will have plenty of opportunities to see him and get some of his wisdom.
Peter
P.S. Brian, if you ever read this: I am still sorry for slamming your thumb with the lid of the packing crate at JLCLive!