There is so much awesome in that vid it's hard to know where to begin. But if there's one obvious take-away lesson, it's....
........ yep we have moved on lots in the last 45years !! Though the illustration of why hugging the wall when moving is not the best idea was well done....
That said the world moves at a different pace, my first training was for drawing a Model 10 from a full flap leather holster worn cross draw !!
Over there in Austria, did you guys get into the Calibre Press Street Survival phase of the late 80’s, early 90’s? That was some cutting edge stuff at the time and what I consider the emerging from the dark ages of cover/tactics/etc shortcomings.