Why can't they clean up their OS distribution. This kind of content clearly does not belong there at least if it is practically hidden in there. There should be a reason why every file in the OS distribution is there. This kind of looks like Apple does not know what is in their OS. What else is there?
«A little bird tells me that someone internally filed it as an issue nearly a year ago, assigned to the same engineer who put the PDF there in the first place, and that person hasn’t taken action or commented on the issue since. They’ve indicated it will likely be removed in future versions.»