I think good tutoring should/does demonstrate the standard. It shows us what education can do, when the limiting factor is (ideally) the students' ability to learn instead of resources available to teach.

Idk if any technology, institutional framework or other fix can ever achieve that standard. They don't necessarily have to. Its still useful to have a comparative standard.

There will always be a difference between learning to (say) pole jump & hammer throw by self coaching, vs training under an olympic coach. You can, however, use that coaches' methods and standards to teach a cheap, recreational class.

The mechanism is complex, but recreational field athletics is better (farther/higher) by existing in a world where olympic training exists. They'd be even better in a world where those trainers coach middle aged normies, to remove the "youth and talent" factors.

I suspect, for example, that small groups or 1-v1 can comfortably pace a primary school curriculum with a small fraction of the desk hours. That in itself is a "performance gap" with potentially actionable crossover.