The "five paragraph essay" is rarely presented as an essay outside of schools and even less rarely has just five paragraphs, yet even in 2018 it flourishes unnoticed as the organizational skeleton for most expository nonfiction that’s not presented as a narrative.
Consider this: Revealing a skeleton ought to require a serious surgical operation. When you can see a skeleton beneath someone’s skin, that means the person has a serious deficiency. That body is undernourished.
When you can look at a piece of writing and spot the five-paragraph structure at 50 paces, the problem isn’t bad bones but malnutrition.
The "five paragraph" skeleton needs to be fleshed out well enough that the bones don’t stick through the skin.