The only images on the linked page are a PDP-11 console and a scott adams strip in the appendix. Neither the about page nor the main page have any images, either. What's your problem here, exactly?
But yeah, I don't really get what the problem is...there's always reader mode, and it's not like they're dumping a ton of JavaScript on you!
(Seems like something about the site's CSS bugs out in dark mode, causing the image to not show up. Or maybe it's intentional because of bad transparency or something like that)