What specifically are you referring to in that table? The original article is a lesson on how to use JavaScript, from scratch, for a beginner. That perfectly fulfills all four requirements in the "tutorial" column:
> oriented to: learning
> must: allow the newcomer to get started
> its form: a lesson
> analogy: teaching a small child how to cook
It does not satify all the requirements of any other column.
https://documentation.divio.com/introduction/#the-secret
It's certainly a valuable take, even if you disagree with the claim that all 4 functions are required for good documentation.