FWIW, the screenshot of the page doesn't actually look like how the page looks like currently. One could handwave and say that's intentional, but IMHO it looks as though the styles are broken (in particular the text in really small font and the yellow highlighted text)

I think the moral of the story here is that if you're going to be advocating for HTML over a SSG, then perhaps it would make sense to invest a bit of time on a styleguide page, or take a bit more effort to leverage default styles (in the style of http://motherfuckingwebsite.com/), or just commit to inline styles to lock down the individualistic look of each page (if that's what they want). Being wishy-washy about style management over time is not going to age well.