> Is he saying humans have become this way because of the influence of LLMs?
No. The first paragraph explains it quite clearly, IMO: "While some are still discussing why computers will never be able to pass the Turing test, I find myself repeatedly facing the idea that as the models improve and humans don’t, the bar for the test gets raised and eventually humans won’t pass the test themselves."
The point is not that the problems exist more in humans now vs before. It's that they can be observed more significantly in humans than in LLMs (and moreso over time) if one cares to look because LLMs improve and humans do not on sub-evolutionary timescales. And perhaps our patience with them in humans is now diminished because of our experiences with them in LLMs and so people may notice them in humans more than before.