> Now an assistive technology user has an equal (and maybe even better) conceptual map of the content and actions they can take on this website compared to a non-assistive technology user. They can get a quick overview of everything on the site, easily navigate to the section of the page they want, and quickly find what they are looking for.

Often there's substantial overlap between improving accessibility and helping "power users".

Sometimes that overlap can help convince managers to spend more time on these kinds of features.

(Unless maybe your whole model is herding people to ads or "promoted" stuff.)