Wordpress is not static at all. It support commenting and loads comments by default, it shows related articles dynamically depending on categories and views, it displays different content to different viistors, resize and compress pictures on the fly, etc... and a thousand more things if you are a logged in user, it really is dynamic.

It's actually pretty good considering what it does (if you don't setup a ton of plugins and no ads). There can be 50 requests per page but that's because of all the pictures and thumbnails. The page can render and be interactive almost immediately, pictures load later.