Alpine Linux doesn't have bash installed by Default either. Don't know about the others

ArchLinux - wrong, has python preinstalled even if you go with the base image. Alpine - doesn't even contain bash in the miniroot edition Busybox - similar to Alpine

If python happens to disappear from all linux distros ansible can still work with the raw module.

In any case, the bash script posted is based on apt install so it's not going to work on much less amount of distros rather than if it was just an ansible role.