You're completely right! Those are all amazing resources.

I would posit that using textbooks, syllabi, recorded lectures from the best schools and greatest professors, and documentation is still a form of self-direction. The learner is left entirely to their own direction, discipline, and environment. Perhaps the only thing that's changed in that list of wonderful resources since the 1960s is MOOCs. I thought of and considered these resources when writing my previous comment.

Perhaps I would have been best-advised to use a turn of phrase such as "self-directed with use of readily available non-instructor instructional resources". I thought such a phrase excessively clunky and unnecessary to make the point, but perhaps I was wrong.