But that's kind of irrelevant. This is a government website. A >30 MiB download; poor support for reader mode, custom CSS, or screen readers; excessive animation; and low contrast are all objectively poor for accessibility. This is why the people in 18F and USDS made websites that look different from private industry: the goal is to provide essential services and information to everyone, not to make a real impression on the subset of the population that can use the site.
If the website isn't important enough to design it to be accessible by every American, it isn't important enough to spend my money developing it.