I remember when that article first made the rounds. I had been doing something like that for a few years already and the article did a good job making all the same points I would have made.

In hindsight, the biggest challenge that I've found is getting your "do-nothing script" to become the authoritative source of how to do something. The fact that the steps themselves are still manual means that it's easy for people to create their own manual side paths to cover new situations and it's hard to get those added back into the script.

If your CI/CD server is running all the steps then the only way to make something happen is to get it into the build script. If there are humans in the loop then there will always be new things that come up, people who do them in slightly different ways, and stuff that doesn't get committed back into the scripts.