It seems to me that the overwhelming majority of people working with ChatGPT are aware of the "con" described in this article -- even if they view it as a black box, like Google, and lack a top-level understanding of how an LLM works. Far greater misperceptions around ChatGPT prevail than the idea that it is an infallible source of knowledge.
I'm in my 30s, so I remember the very early days of Wikipedia and the crisis of epistemology it seemed to present. Can you really trust an encyclopedia anyone can edit? Well, yes and no -- it's a bit like a traditional encyclopedia in that way. The key point to observe is that two decades on, we're still using it, a lot, and the trite observation that it "could be wrong" has had next to no bearing on its social utility. Nor have repeated observations to that effect tended to generate much intellectually stimulating conversation.
So yeah, ChatGPT gets stuff wrong. That's the least interesting part of the story.