Speaking as somebody who spent thousands of dollars for a lawyer on a matter, with basically no results, and also who used chatGPT, personal research, and common sense to solve this same matter for free, I can only say if a LLM is "a generator of misinformation that is maximally difficult to distinguish from real information" a lawyer is simply "a human who has been trained to maximally drain your wallet without regard for any other matter", of course, neither is true and there exists far more nuance for both.
Sure, there are matters I would only trust a lawyer to handle, but there are a great many I wouldn't.
Further, the average quality of a human lawyer will likely remain the same tomorrow as it is today, while AI will only get better. LLM today, perhaps some hybrid stack tomorrow, it's only a matter of time before an AI lawyer is the way to go for just about any legal matter. And let me be clear, that time might be 10 years, or may be 100+, but it is coming.