The ublue images are useful to people, so I'm sure your images will be useful to someone. I'm just making a judgement call for myself.

Any other project ontop of Fedora increases the attack vector with its own maintainers.

If I can choose between legible Ansible yaml, and an ISO, I find the yaml much easier to grasp and understand.

Bundling things you could easily do with yaml into an ISO is almost obfuscation. Because most people are not going to read or understand your build config and logs. While Ansible yaml is clearly labeled and tagged for each action.