In this age where the trend is JAM stack, it is refreshing to see that something battle-tested like WordPress was chosen. There's a reason WP has withstood the test of time. (WordPress developers being a dime a dozen also help make the case)
JAM stack (this term is trademarked by Netlify, FYI) is such an awful trend for anyone but developers. The web runs on WordPress because it's SO easy for anyone to stand up a quality, functional website. I drop in on a local WordPress event a few times a year and many of the people there are 60+ and very much non technical but have put together great sites that benefit humanity.
And its also really easy for it to be left without updates or security patches, with an insecure admin account password, and with a set of plugins that open up more security problems.
It might be a bit harder to get up and running with a static site generator but the fact that it's essentially unhackable (through the site itself; the host server has the same issues as any website) is a massive advantage.