That is why I am a firm believer in believer in leaving the original sliding gear boxes in the old girls. The whine of the gears is part of the character of these machines. I learned to drive almost 60 years ago, and that was still a common transmission, and we had to learn the technique. Its been a little over 50 years when I had to deal with 2 sticks.
Its a good video and looks like south of Hyy 90 where my wife grew up at. Missing a gear and recovering isn't easy. We used to call it getting lost in the gears and I have had to stop and just start all over before.