I came across this shortly before beginning my degree in music and it completely changed how I approached learning new pieces. When I tried to explain the technique to another pianist, they were confused as to what was 'new' about it. I guess they never had a teacher say "play it over and over until you can play it without mistakes".
Now, my wife is completing her education degree and I see a lot of this approach being implemented in K-12: identify and focus on weaknesses; use your strengths to enhance your weakness; spend time on the big problems; balancing holistic approaches with concise methods, etc. All seem obvious and yet I didn't have a single teacher in music or otherwise suggest any of them to me.
This attitude contributes to the problem: many teachers at a higher level don't even bother to teach this stuff because they think everybody already does it.
Jailbroken devices have this ability. At one point I had rclone daemon syncing iCloud files to Seafile through the terminal. You can also run scripts through Shortcuts by local ssh
Sure, and then you sink more into the locked in Apple ecosystem. What do you then do if Apple one day decides to start using all that data that they have?
How is that worse? Are you really saying that we should use a less private solution today, on the off chance that the more private solution becomes just as bad at some unknowable point in the future? How is that rational?