Additionally production lines are all about doing the same thing over and over again, with fairly minimal variations.

Software isn't like that. Because code is relatively easy to reuse, novelty tends to dominate new code written. Software developers are acting like integrators in at least partly novel contexts, not stamping out part number 100k of 200k that are identical.

I do think modern ML has a place as a coding tool, but these factory like conceptions are very off the mark imo.