https://web.archive.org/web/20201018130325/https://codeload.... is a ZIP containing the repo.
Where the hell do they have that much hard disk space, and who is funding them?
Even though it takes a lot of bandwidth, I think preserving the source code on GitHub is an invaluable service and hope they continue to do so. I didn't know they were saving the zip file of every release, but I can understand why. It gives you point in time snapshots more easily and who knows how easy it will be to use a git repo from today 100 years from now. ZIP is a much simpler format if it needs to be reimplemented and is used all over the place.