>Conversely, the loosely coupled individual components of traditional UNIX service handlers (sysvinit, inetd) promoted people learning how the actually work, and what they do, but with scattered and not entirely comprehensive documentation on how they worked.

Can you tease out this distinction a bit more? It reads like you are saying, due to their nature, people learned how to use Unix service handlers, without a good understanding of how they were designed. It could also mean that people learned how Unix service handlers worked by using them, through trial and error, because the documentation was scattered and not entirely comprehensive.