Many of his other prompt examples also illustrate this. The author is massively leveraging the architecture of the organization through familiarity. It could well be the case that even an LLM was used to set that up, but I doubt it happened in one prompt or without critical thought. To be fair, I guess he's sort of trying to point that out, but by saying "Look how lazy I am while it still works" or something like that in order to look cool, I think all he's conveying is "Look how easy this is", when it's potentially not and could increasingly cost him/his company wildly varying amounts of money based on how he goes about it. When tokens were virtually free, no one cared. This is increasingly not true. Many are drawing comparisons to early cloud architecture.
I find this is sort of similar to the problematic idea that in theory anyone can clone your repo and get a local dev environment running in a few seconds. So then you try it with a non-technical staff member and quickly realize how unrealistic that is as you run into abstraction after abstraction that is completely foreign to them.