In fact, I think most people on shared hosting are not hosting static sites, but rather sites based on one or more of the hundreds of PHP application frameworks out there (WordPress, PHPBB, Joomla, Drupal, Magento, MediaWiki, etc, etc.)
Back when I used to do frequent freelancing for the type of client who used shared hosting, I don't think I met a single one who hosted static sites, even though for many of them static would have been more appropriate and far more secure and performant.
Back when I used to do frequent freelancing for the type of client who used shared hosting, I don't think I met a single one who hosted static sites, even though for many of them static would have been more appropriate and far more secure and performant.