There's no reason _not_ to use static sites for types of sites he's talking about (learning sites for hobbies, blogs, general sharing of information), created with things like Hugo, or even a simple script to generate pages with your own templating. There's nothing to exploit, because it's just HTML.

If you don't feel like keeping a server secure, there are free and easy hosting solutions (Cloudflare pages publishes at a press of a button, for example).