(I am the author)

The point of that statement was to run counter to the standards of "always us X type of comments" that some teams adopt. My suggestion is that there isn't a "correct" type of comment that you should always use, but rather that it's highly situational.

It's really a parallel to grammar in any other kind of language - there isn't a singular 'correct' way to structure a piece of writing into paragraphs, but it's also typically incorrect to treat each sentence as a paragraph or to avoid paragraphs entirely and write everything as a single block of text.

It's unthinkable that a team of writers would ever try to standardise on "never use paragraphs" or "every line is a paragraph", but some programming teams do exactly the equivalent of that!