I can point to similar problems even in CLI-target apps. In Nicholas Carlini's post for example he shows how LLMs helped him make curl parallel by piping to the "parallel" utility. That works but no sane person would do it given that curl has built-in parallel processing via the "-Z" flag which you could have found in 10 seconds by opening the man page. I'm sure this was an instance of a developer (truly) believing they became 10x more productive.
These aren't even the "hard" problems that are beyond the reach of LLMs today; they seem like things they should be able to do. It's just that, today, they just aren't achieving the spectacular results that many are claiming; it's mostly pretty crappy.
Also it doesn't look like htmlq can handle pages that render their content with JavaScript. If you want to do that you might find my shot-scraper CLI utility useful: https://shot-scraper.datasette.io/en/stable/javascript.html