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,

It’s like the google claim. There was a years worth of work up front, but AI took the typing from a few days to a day.