I think this is a genuinely good question that I was also wondering some time ago.

And it is a genuinely good question!

I think the answer of PD says feels the truest.

JS/CSS with all its bureaucracy are nothing compared to HTML it seems. Maybe people don't find nothing wrong with Html, maybe if they do, they just reach out for js/css and try to fix html (ahem frontend frameworks).

That being said, I have just regurgitated what PD says has said and I give him full credit of that but I am also genuinely confused as to why I have heard that JS / CSS are bureaucratic (I remember that there was this fireship video of types being added in JS and I think I had watched it atleast 1 year ago (can be wrong) but I haven't heard anything for it and I see a lot of JS proposals just stuck from my observation

And yet HTML is such level of bureaucratic that the answer to why HTML doesn't have a feature is because of its bureaucracy. Maybe someone can explain the history of it and why?