The danger of confusing process with substance is definitely an interesting point. Everyone can probably think of an example where that's happened.

But as someone who learned unix and some CS among other things in public schools in a way that would have been impossible out of anything provided at home I'm definitely reluctant to throw that institution entirely under the bus.

And in general I'd think that a forum full of people who make process for a living (software is arguably nothing but process) should understand that while systems are often full of blind spots that doesn't mean they're without their utility.

What's needed is to figure out how to make services/systems/institutions with value.