Agree, it's unnecessarily limiting to say the well is entirely dried up re: improving status quo tools.

Charitable pov though, i'd say it's about leverage. Learning outcomes globally suffer steep steep cliffs and it's inevitably due to socioeconomic factors.

It's hard to argue that more chromebooks, spaced repetition, and catering to learning styles are the missing pieces johnny needs to get out of the hood.

as a person in tech i believed for a long time that if only we had better learning materials, people could orient and better self motivate around subjects. (learning needs to be hard. it's biology. brain takes notice and retains new and challenging stimuli. so "making learning easier" is a misnomer. the insight becomes how do we get people to self-motivate into hard things?)

I still think that's true, to your point, but all these takes are one of many many problems, and they aren't equal in leverage and i think that's where OP is coming from. there's outsized leverage in domain specific pedagogy.