There's no cert because there's no need for one in the first place. Mentioning that is pretty silly - it's obvious that there's nothing wrong with a static site with now cert, and no one is arguing against that.
Good to note. But I think you're distracting from the article's talking point.
I disagree with "switch to HTTPS or lose ranking", but that's an HTTP vs. HTTPS issue with Google's search ranking, not about Chromium or Mozilla. This article is about Chromium & Mozilla making stricter rules for HTTPS certificates. That's not a bad thing, to hold HTTPS sites to a better standard.