Looks more like a status page. Where blogs are historical lists of articles, this page gets updated regularly, with new content overwriting the old.
Looks like the same to me. The page gets updated "regularly" (like a blog) and older content serves as a history of what the person was doing at that moment.
If you look at the author's /now page, it's very clearly not that: https://sive.rs/now.
However it's very obviously not a blog since a blog encompasses a much larger concept. You can blog about your hobbies, interests, specific topics, related or otherwise. I'm confused at the OP's confusion between a blog and a /now page.
Hm? And you can also blog the same content as you put on /now. Many people do. A public journal of whatever is going on in author's life is pretty much the OG idea of a weblog.