This is completely irrelevant to why I am posting though, it is in response to some of the curious replies above. The author can provide any means of distribution that they wish to, they can send it by carrier pigeon if that is their preference. If you don't want to join and therefore don't want to download it, it isn't their loss at all, it's yours. In fact, if the best that you can offer in response to a free route is to say "His Loss!" then i'd probably not be alone in thinking that you don't deserve to have the free content in the first place!
From what I can see of the screenshots above and from the brief discussion I have have had from someone who does have the route, it does seem like a very impressive effort and I can only offer congratulations on such a large project. If the author decides somewhere down the line to offer wider options for download then so be it, if they don't then I respect their choice.