This is the same issue as https://github.com/remix-run/remix-website/pull/262: the dark mode plain color rule has higher specificity than the text-inherit rule, so dark:inherit is needed to allow the :active color to continue to be applied. In this case it is more subtle (which is why I initially though there is no problem here), as links are still distinguishable as links.
...unlike normal links in dark mode, or both types of links in light mode.
(Test page: route/route)
This is the same issue as https://github.com/remix-run/remix-website/pull/262: the dark mode plain color rule has higher specificity than the text-inherit rule, so dark:inherit is needed to allow the :active color to continue to be applied. In this case it is more subtle (which is why I initially though there is no problem here), as links are still distinguishable as links.