I think that’s all still addressed by him saying (paraphrased here) “learning C doesn’t teach you your system; it teaches you the C virtual machine.” You could just as easily teach the usefulness of lexical scoping and memory layout by teaching people a simplified version of a modern JavaScript engine and teaching them to inspect the accompanying intermediate representation. Bootcamps don’t dive into these things and give attendees intuitions for some model of computing because they know what people are paying for (learning the level of JS necessary to land a job as quickly as possible).
