I'm not moving the goalposts, my goalposts are exactly where they were in my first comment: The concept demonstrated in the article was not possible twenty years ago.
In fact I was very specific about what concepts were not possible twenty years ago: "What's being shown off here is not having a single page of a website in just HTML/CSS, but having all pages."
You're the one who proceeded to ignore that and make an unrelated claim about something different that was possible twenty years ago.