Disagree. As a lawyer I use LLMs with RAG to help me surface information all the time. Often, this allows me to find niche case law that I just wouldn't have had the time to find on my own. However, I double-check everything, and read all the original sources.

LLMs are best treated as the AI equivalent of a human assistant who is knowledgeable and fast, but also inexperienced, and thus, prone to making mistakes. You won't throw out the work of such an assistant-it'll still save you hours of effort. However, you won't take the work at face value either.