It certainly does, but these "some" really are exceptions. Just try it for yourself, edit PBR and compare the experience to "just" editing the source code of PBR (yes, of course, not being used to something doesn't help). To be honest, I haven't looked at PBR for more than a decade so maybe I would succeed nowadays, but I doubt that.
I guess realising that literate programming is literally [sorry] writing a programming book should be enough of an argument to know that it isn't suitable for most people. And no, a white-paper is not a "programming book" suitable for most people to read ;)