> The improvement comes from the change design, not tech.

You could argue that the constraints of using HTML-first (as they call it) helped them stay away from the bad patterns they were using before.

But you’re right: The user change came from fixing the design, not the technology used.

This is a lot like those bad resume bullet points where someone tries to claim an increase in business was due to their code change. “Increased visitor count 100% by rewriting website to be HTML-first”. Then when you ask them about that point they concede that the entire site was redesigned to fix some design problems or add a feature and that’s what drove the visitor increase.