For sure! I'm all in favor of bespoke new tools. If anything I'm just confused about the way they describe this in contrast to SSGs (and why a SSG wasn't a good option for them), and then go on to create a tool that literally generates a static site. :P

Maybe I'm being obtuse, but the reasons they gave for not using an established SSG primed me to expect a radically new solution. Versus "we didn't like any existing SSGs so we built our own," which was my takeaway from the whole thing.