Is the purpose of this article to say "If you only do one thing, you will likely not excel at other things"? Is there anyone to which this is not an obvious conclusion? Did I miss the point?
The point is if you let something think about x for you you will become worse at thinking about x.
Is that true? I'm not quite as confident as the author, but it seems plausible. I've seen a number of managers who used to write code try and fail to drive Claude as well as even the junior engineers reporting to them.