Such speculation is just fear mongering and that is exactly what the daft bullies want.
The best legal professionals, just like the best software engineers, have wholly embraced LLM assistance.
"Gee, we bill $700/hr but just can't figure out how to put a prompt into a chat interface." Please.
LLMs have been making so many mistakes that the big firms have slowed or even paused their LLM spend. And that was before CA passed a law relating legal AI use.