For a site were tons of people speak of the value of simplicity, and every other day they "Show HN" their own "static site generator", it's surprising how many people do NOT get his message.
First, he is not a web developer. He is a busines owner that also had to create a site for his business. He chose to follow the KISS principle, and that's what he advocates: catering to content first, fancy stuff second (or never at all).
The peripheral details to his post (if he personally uses Flash for some stuff but you don't like it, or if he has a line about coding important apps in C and you disagree) don't matter.
What matters is that for content websites --which makes most of them out there, including all blogs and brochure-ware sites --, his advice is spot on.
As for his website "looking like crap" (as 1-2 people comment below). That's the whole point. As long as it gets the job done he doesn't care. And it's not worse than Hacker News (no paragon of great web design) or Paul Graham's site.
Would you rather read PGs eassays in his website, or some moron's zero-content marketing fluff on a great looking, fancy-ass website, with CSS 3D transforms and the whole works?