I agree with the title, but perhaps for different reasons. Somewhere (maybe the 1960s?) the idea crept in that programming is some kind of production process,

I agree with the title, but perhaps for different reasons. Somewhere (maybe the 1960s?) the idea crept in that programming is some kind of production process, and the "engineering" happens upstream. Elsewhere, the line between engineering design and manufacturing is the transition of a set of documents to those with the skills to turn what those documents specify into real products in a reliable, repeatable manner. That repeatability is one of the hallmarks of manufacturing. For software, all the processes reliable enough to qualify are downstream of typing `make` and striking return, ending in the binaries and the computational processes that those paying the bills desire. It's our build and deployment tools that do the construction, which means that our source code is the final, detailed design.