If they are useful for sighted users, they are also useful to non-sighted users. E.g. if it is useful for a sighted user to read the weekly download count of a package to get a sense for how popular it is, to read the latest version, the license, etc (it arguably is) then the same applies to a non-sighted user. They shouldn't be forced to find and collect all that same information elsewhere (if it's available at all).