From the article:

  Historically, it would take a reasonably long period of consistent effort and many iterations of refinement for a good developer to produce 10,000 lines of quality code that not only delivered meaningful results, but was easily readable and maintainable. While the number of lines of code is not a measure of code quality—it is often the inverse—a codebase with good quality 10,000 lines of code indicated significant time, effort, focus, patience, expertise, and often, skills like project management that went into it. Human traits.

  Now, LLMs can not only one-shot generate that in seconds,

Evidence please. Ascribing many qualities to LLM code that I haven't (personally) seen at that scale. I think if you want to get an 'easily readable and maintainable' codebase of 10k lines with an LLM you need somebody to review its contributions very closely, and it probably isn't going to be generated with a 1 shot prompt.