The premise of the article is that they are not easier to work with and do not save time in most situations. I agree.

Most websites are fundamentally documents, even those that think of themselves as apps. You could even build gmail quite easily as a document based app with some limited use of fetch() or WebSockets to get the data you need, though it's one of the few applications where a less document based approach might help.

React and other js frameworks are a huge amount of overhead for very little gain if you see the web this way. Your about page is not improved by using react.