Why do these SEO people write so dramatically? Why do they use such short sentences and short paragraphs? Want to know? It's simple. They fall fowl of Goodhart's law! But what's that? I'll tell you! Goodhart's law states 'When a measure becomes a target, it ceases to be a good measure.' That's a lot of words, and it's really complicated, so let's simplify! Stay with me -- I'll teach you. We can learn together. You're…
It's also likely in part down to them optimising for readability tests. Stuff like Yoast grades your content based on the results of a Flesch-Kincaid readability test, which marks it as easier to read if there are less words and syllables per sentence, with the recommended score being roughly equivalent to a grade 8 reading level. Hence these SEO writers are basically writing for 13-14 year olds.