You might have opened the article thinking that it was going to be a discussion on cognitive load theory in general. It's not and I don't believe it needed to be for its purpose, since it's been well framed: code. Intrinsic, extraneous, germane loads? Why talk in abstract? The field of professional programming is an exemplar that evidences all those concepts. We pretty much live the theory. Programming is inherently complicated, we know how/why. We tend to needlessly add to the complexity, we know how/why. We are also notoriously ignorant, oblivious even, of our minds' true limitations and have strange beliefs regarding our abilities. Check, check, and check. Article can just speak plainly. "Don't make complicated things more complicated than they need to be. You're only human".