You’re not wrong… but “static files” ultimately are infinitely less complex than any dynamic CMS, and require no effort or brain power to migrate between (even bottom-of-the-barrel) providers
I sort of not understand why we are not using static Files more often now.
In the old days we need CMS mostly because generating links and update to certain pages were expensive. Hard Disk were slow and memory were expensive. Now we have SSDs that eliminate 99.9999% of the problem.