If that's true, it seems like the kinda missing bridge/glue between generators like Jekyll/Hugo; allowing static content without needing to be a web dev.
But seriously, in my experience, I'd rather use something other than Wordpress. There are lots of things it does well, but not usually for the projects I work on. Use the tool that works well for the project.
My go to example is a simple payment order form (or sometimes forms in general depending on the CMS/static site generator).
If I use this tool, there are no forms. Client comes back a year from now and says they want to add a form. So after much fuss we move to something with forms. Then another year later, they want to take payments for $20 T shirts. We could spin up a 3rd party service but sometimes that makes things even more complicated.
If I started on WP, I can use one of the dozen form builders that support basic payments and I would have saved my client thousands of dollars of transfer fees and hours of my own time converting data between these platforms for little gain.
I say all this as someone who builds mostly WordPress sites at this time, though I’m always trying out new things too.