I also suspect that there are attorneys out there who are starting to use LLMs to generate legal work with a method similar to what the author described (generate prompt, revise minimally). Lawyers are taught to write a certain way which LLMs mirror flawlessly; the surest way to identify LLM generated legal writing is if it happens to hallucinate citations. I used to regularly find hallucinated citations, and occasionally strange reasoning, but both have largely vanished as the LLMS improve.