There is definitely some naivety about this manifesto - mostly about what computers would end up looking like in practice once the hardware and software industries figured out how to build them so they could be marketed to the petty authoritarians who administer schools, as well as the smart rebellious kids, and every other sort of person including ones who were never at +++The Mentor+++'s high school. It's net-good if the average normie has access to the incredibly powerful computers and networked systems of the present day, but that will necessarily dilute the number of people interested in deeply exploring computer systems as a percentage of total internet users, which indeed is what actually happened. Not to mention all of the other complicated social consequences of the widespread adoption of networked computers that occurred in the decades after this essay - I suspect the author would like some and dislike others, depending on their other values in life.
Nonetheless, I can't help but admire the rebellious spirit in this article. A lot of human social systems really are conformist and oppressive - high school absolutely included - and I have some respect for people who chafe against it.
I guess it would be good to ask, what specifically was +++The Mentor+++ arrested for, and is that law good or bad?