Central leadership doesn't mean having a figurehead, but having an organized approach to attaining goals. You can have a person leading or a committee or a chapter or some other form, but having that be the driving force can lend greater longevity to a movement than only relying on "spark to powder keg" events. Even the Black Panthers, who were more militant than MLK had an organized agenda. The riots that followed MLK's assassination forced greater pressure on congress to, for example, pass the Fair housing act. However, the fair housing act was initially made possible through the efforts of MLK and other organizers of such events as the March on Washington for Jobs and Freedom and Brown vs. Board of Education. They laid that foundation through organized and systematic effort. They offered a greater credibility and accountability for their actions ,as such, their actions and responses were measured, organized, and, in my opinion, more lasting. And, while the riots following MLK's assassination put a lot of pressure to pass the fair housing act, they also had a huge blowback on the black communities. The weaponization by politicians of the idea of "violent and dangerous blacks", the justification for more intrusive policing, the migration of whites from inner-cities, and many other such repercussions which were wrong, but, ultimately, the narrative was in other people's hands.
Regarding your article, I thought that the purpose of writing and subscribing to Medium was to be able to discuss important issues and avoid being in echo-chambers. You proposed an interesting idea that I saw value in and I was curious to learn more about how we could integrate it in our school systems. Which countries do we cover? How in-depth should we go? We should all be encouraged to go beyond the curriculum to study history more in depth.