Why don’t you watch the 80-minute-long video and then tell us about it?
I am in mid-watch, and would not dream of ruining the surprises. Everything he says dovetails with much of what other Russians have told me. So you can either watch it yourself, or try ad-hominem-ing blind because you think you MIGHT disagree with something he says that you don’t want to sit through. Or whine that it’s too long. Suit yourself. The first half hour is the most telling.
I have a very easy time watching videos, because I just listen while I work on my calligraphy projects. It keeps my mind busy while doing something that’s partly mechanical and partly takes concentration.