I remember being blown away by this. Unhygienic templating and lack of template and serialization boundaries has been such a consistent disaster in our field for so many decades that it is hard to believe we are still dealing with this kind of design error in relatively new technology.

My feeling is we will probably all look back at the over-use of text based DSLs and configuration languages as a giant mistake. Not just with respect to K8s, but IaC, CI/CD config and the rest of the DevOps YAML/config language mess. In retrospect, it has been a case of simplistic instead of simple. "Declarative" config languages are hello world optimized, and what looked great at the beginning of the S-curve is starting to look pretty damn bad.