This is beautifully written, but as a point against agentic AI coding, I just don't really get it.
It seems to assume that vibe coding or like whatever you call the Gas Town model of programming is the only option, but you don't have to do that. You don't have to specify upfront what you want and then never change or develop that as you go through the process of building it, and you don't have to accept whatever the AI gives you on the other end as final.
You can explore the affordances of the technologies you're using, modify your design and vision for what you're building as you go; if anything, I've found AI coding mix far easier to change and evolve my direction because it can update all the various parts of the code that need to be updated when I want to change direction as well as keeping the tests and specification and documentation in sync, easily and quickly.
You also don't need to take the final product as a given, a "simulacrum delivered from a vending machine": build, and then once you've gotten something working, look at it and decide that it's not really what you want, and then continue to iterate and change and develop it. Again, with AI coding, I've found this easier than ever because it's easier to iterate on things. The process is a bit faster for not having to move the text around and looking up API documentation myself, even though I'm directly dictating the architecture and organization and algorithms and even where code should go most of the time.
And with the method I'm describing, where you're in the code just as much as the AI is, just using it to do the text/API/code munging, you can even let the affordances of not just the technologies, but the source code and programming language itself effect how you do this: if you care about the code quality and clarity and organization of the code that the AI is generating, you'll see when it's trying to brute force its way past technical limitations and instead redirect it to follow the grain. It just becomes easier and more fluid to do that.
If anything, AI coding in general makes it easier to have a conversation with the machine and its affordances and your design vision and so on, then before because it becomes easier to update everything and move everything around as your ideas change.
And nothing about it means that you need to be ignorant of what's going on; ostensibly you're reviewing literally every line of code it creates and deciding what libraries and languages as well as the architecture, organization and algorithms it's using. You are aren't you? So you should know everything you need to know. In fact, I've learned several libraries and a language just from watching it work, enough that I can work with them without looking anything up, even new syntax and constructs that would have been very unfamiliar prior on my manual coding days.