I think his argument is that the functionality is unnecessary. You don’t need dynamic service scaling because your single-instance service has such high capacity to begin with.
I guess it’s all about knowing when to re-engineer the solution for scale. And the answer is rarely ”up front”.
Dynamic scaling is not really even available on a single node kubernetes.
I was thinking more of
Running multiple websites. i.e. 1 application per namespace. Tooling i.e. k9s for looking at logs etc. Upgrading applications etc.