This is a really good point. Most of my deploys go via GitHub Actions these days and it's not easy for me to deploy manually should I need to when Actions is unavailable - I should fix that!
Like aviation, every regulation/rule is written in blood ;)
This is why the three of us should record a podcast episode talking about this in the context of the points made in the Ironies of Automation
CI automation is for me the thing that replaces me running scripts one by one (and reporting/deploying results)
It is not the thing that does the building/testing/deploying. That’s the scripts that are hopefully written in a debuggable, portable, language.