I agree with you Chris, that the government webmasters don’t do SEO optimization on their website, thus limited visibility. So much so I wrote a blog post on that https://www.govloop.com/profiles/blogs/start-a-government-small-business-internet-marketing-support?xg_source=activity not too long ago.
From what the various Government websites look like, their PIO offices are not connected or controlling the web masters. Because their design principles and operating procedures vary from entity to entity, with lack of SEO being the primary thing in common. As pointed out in my blog post above. :>)