There are some advantages to having a purely static-HTML website, in terms of unattended maintainability.
In addition to the government, it seems many companies don't have one anymore. If servers get compromised, it's common for companies to just take the whole site down pending a fix, and replace it with a single HTML splash page. If they had a full-featured static-HTML version of the site, they could fail over to something more complete than one HTML page, but that seems uncommon.
In addition to the government, it seems many companies don't have one anymore. If servers get compromised, it's common for companies to just take the whole site down pending a fix, and replace it with a single HTML splash page. If they had a full-featured static-HTML version of the site, they could fail over to something more complete than one HTML page, but that seems uncommon.