Real human writing doesn’t follow such strict rules. When the same small set of rules is applied over and over throughout a text, it becomes obviously strange and machine-like.
- The subject becomes simultaneously less specific and more exaggerated.I'm a fan of that phrasing because it used to have real punch if you delivered it with the right timing.
"It's Not A Fashion Statement, It's A Death Wish" comes to mind.
While I agree that no-one used to write like that as a whole before, all the elements can be found in different places. Short sentences to avoid discouraging poor readers. Maximally impactful statements are commonly used in marketing or other business communication that's focused on selling what it's saying. A bullet-pointy style is used in many kinds of business communication. Etc.
It makes me wonder if part of what happened was a kind of melding of common styles from several different kinds of writing.