Curiosity is really key, and I find that LLMs diminish curiosity in people that might otherwise have it because the allure of the answer is often a lot stronger than the allure of the friction. I guess that's just the distilling of the industry over time, but that could certainly lead to a shortage of expertise.
If that is representative of your personal experience, then I'm saddened to hear it. I believe your article is an argument from incredulity [1]. You may not personally know anyone who thrives in learning from and applying knowledge with AI. But being unaware that it is even possible is not evidence that expertise will inevitably collapse.
[1]: https://en.wikipedia.org/wiki/Argument_from_incredulity