But yes, it's "vibes" - although extremely obvious IMO. Extreme usage of headings for paragraphs, which are often just a bullet list or a string of short marketing-speak fluff statements.
That's all aesthetic though and not the offensive part, it's just what makes it obvious. The offensive part is you can read the whole thing and come away with little more than the title. The author's perspective and voice is lost, beyond "they want you to try htmx" I can't tell what they care about or why, I can't tell what it is they were excited to try to convey.
Btw they did just add this to the footer.
> Does this all sound a bit like shallow slop? Yup, please help make it better.