This is too broad of a statement to possibly be true. I agree with aspects of the piece. But it's also true that not every aspect of the work offloaded to AI is some font of potential creativity.

To take coding, to the extent that hand coding leads to creative thoughts, it is possible that some of those thoughts will be lost if I delegate this to agents. But it's also very possibly that I now have the opportunity to think creatively on other aspects of my work.

We have to make strategic decisions on where we want our attention to linger, because those are the places where we likely experience inspiration. I do think this article is valuable in that we have to be conscious of this first before we can take agency.