I have fixed? my broken install by downloading the tar file from the new source and placing it in /var/tmp then renaming it to .zulu.XXXX found in the log files.
x64: https://cdn.azul.com/zulu-embedded/bin/zulu8.40.0.178-ca-jdk1.8.0_222-linux_aarch64.tar.gz
After restarting first-boot the setup continued.
With the fix being merged, is there any way to download a new image with the fix applied?