Could it be that we don't have "dark factories" because the moment a workshop turns into an autonomous machine, we reassemble something more complex out of thos

Could it be that we don't have "dark factories" because the moment a workshop turns into an autonomous machine, we reassemble something more complex out of those machines and need again a human operator to manage it? A few decades ago, it took a print shop with several employees to print a brochure. Then came the photocopier, which does it more or less automatically as a sort of "dark printer workshop". We even let them run without supervision in a dark office room. But we still needed someone to collect the copies, bind them, mail them, etc. Then photocopier and binding machine were combined, etc., etc. More and more gets automated and happens "in the dark", but there is always a frontier were human control or intervention becomes necessary. When we cross such a particular frontier, there is typically a new frontier that opens up, while the old frontiers are hardly perceived as such any more. Think of a water pump, for example: it is a "dark factory" that replaces a human-powered well, or of the heating system of a house that runs most of the time without direkt supervision.