It's pretty easy to generalize this, but it doesn't match my perception. People who are using llms to do things they could have already done, but faster, probably have atrophying skill sets. People who are using these tools to accomplish significantly more difficult or complex work than they used to are absolutely finding new ways to push themselves. The problems are just much bigger.
The average Joe can easily vibe code apps that took a small startup just a few years ago. If developers are also using AI to build the same simple apps - then yeah. They're not pushing themselves hard enough, and probably not using their brains as much anymore.
This matches my experience as a statistician who used to begrudgingly write bad code when I had to. LLMs have opened up huge new possibilities for me.
No doubt there's some Gell-Mann amnesia going on, because I regularly have to correct them from doing stuff that's really dumb based on my expertise within my area of specialization. More than once I've managed to extract >3 orders of magnitude performance gains after asking them to justify why their code was so slow. Probably there's still some stupid stuff in there. But it's better than the code I would have written, and I never could have paid for a proper developer to write it.
My perception is that this guy's response to "I forgot to write a readme" was "I should limit myself to tools that do it for me" instead of instilling discipline about documentation.