Yeah Ive been scared off already man, the anonymous names on the internet are terrifying!! Please help
A lot of us are not that anonymous and have posted lots of video of our play on youtube at one point or another. We probably just do it as much because priorities change. But yes, a 2100 player (not even 2300 where these players tend to easily sit) who trained for junior national team in his youth would beat most adults who didn't. That's pretty much expected. Whether any of us would be able to match up with him better by doing the things you suggested in your video is a very open question.
Full disclosure: I didn't watch bc I am not interested. But the validity of my comment doesn't depend on that.
Genetically it is good for people who want to coach online to make more tactics content. Everything one can say about chiquita or forehand open up is out there from Fang Bo and way better players and coaches. No value can be added.
But accessible tactics content is not so common. I coach many adult amateur.low-level club ladies. They don't have the first idea of any tactics. They don't even think when they serve about what ball they want back. It is *by far* very, very far, their easiest quickest least effort path to better results and more fun play.
This is super common at club amateur level.
There are many good reasons for this. I will discuss a couple.
In many cases, tactics are hard to separate from capabilities. Consider me, my best serve combination is a backspin/no spin serve combination. I use it against long pips players a lot to score easy points. Whenever I see a player going up against long pips, I try to tell him to use backspin vs no spin combinations. But since they don't practice heavy backspin and heaavy no spin combinations, the tactics become a waste of time because they are so used to telegraphing their no spin serves and they don't serve backspin as heavy as I do.
The other thing is that basic tactics will appeal to anyone who thinks straightforwardly about strategy in any aspect of life. People who enjoy thinking about TT tactics tend to be people who just like to think strategically and adversarially on regular basis. If you are naturally trying to make yourself play better and make your opponent play worse, tactical and strategic thinking will come naturally to you, you will probably have bought Larry Hodges book on it or read Samson Dubina's tips etc.
Finally, most players who would discuss such things are still competing to some degree so they don't want to give an honest insight into how they think to the whole world so that their opponents know exactly how they think before they do anything, and even the opponents might take offense knowing what the player thinks of their game, weaknesses and strengths. I just talked about my knee issues making it hard to defend forehand balls and Tony has already taken note for when we meet. But if by random chance I win, then my thoughts about what I exploited can be used by Tony the next time and he might not appreciate my frank discussion of his capabilities for others to learn. The tactical plays that work at the highest level are already well defined and a lot comes down to athleticism and ball quality.. So people just want to improve their weapons and will deploy them in match. Largely opponent agnostic.
That said, I'm retired enough and useless enough now that I might think about what you wrote. It might make for a fun youtube channel. I definitely play far more tactically than technically.