It's obvious that people who have played with inverted rubber for their whole life wouldn't be as good if they suddenly switched to a short pimple. Any sudden slightest change in equipment would change their success in winning matches anyway.
The point is that if you get 2 players and train them for 20 years, 1 person would train with short pips and the other one with inverted rubbers on both sides. With the current plastic ball that they introduced, it makes it easier for short pips players to beat other players of higher ranking even than them, and it's just because they play with inverted rubbers which the short pips can easily deflect.
If you then get 100 of people whom half played for 20 years with short pips and the other half with inverted rubbers. I can guarantee that the majority of that 100 players would be winners using the short pips. Because they are OP.
This is weird analysis to be honest. Even in tennis people are playing with extra spin and you really believe table tennis is where less spin will dominate over more?
So why is Falck the only one? At the Lower levels where are the people who are emulating him? Why isn't this working in the women's side?
Short pips are not easy to use, the footwork demands are in some ways higher than using inverted because you can't take the ball late effectively if it has topspin. The key thing is that Falck has an excellent smash/forehand hit and prefers it to looping. You won't find many players who naturally do this but some become really good at smashing balls and this becomes their preferred mode of play and gives the coach a dilemma whether to continue with inverted or to let the player do what he does best. You can see he loops on the backhand, so it is just a result of his choosing equipment to suit his style. You may think Falck signals some shift towards forehand smashing but I suspect most people will try it, acknowledge it is more work than reasonable and give up. Even with celluloid, shot pips had a few advocates but was harder to use - same with plastic. China may develop a player just to be ahead of the curve but I also suspect that they know it is easier to just learn to loop with footwork and forehand. If you run your experiment, I suspect the amount of variation you can generate with inverted will leave it ahead most of the time except for the players with really good and powerful smashes. And that is not most players.
The real problem is that most players have NOT trained against short pips in a while. Close that gap and things become uninteresting again.