Not true. I've done SRED every year for the past ~7 years. It is work, but there are specialized consultants that do most of it. If the work is truly R&D (which would be the case for a cutting-edge AI company) and you track your work in JIRA or something like that, then it's mostly just writing a few pages describing the efforts.
I get your sentiment, but I think it's important for science communication to adapt to the times. Decades ago (and even as little as one decade ago), most scientists (maybe Hawking being the exception) who would dare appear in these 1hr documentaries would be belittled by the "hardcore" scientists with the same words you used "Science should not be over-simplified like that", "they are not real scientists, they just want to be on TV", etc.
The truth is that young people are mostly on TikTok et al, so this type of content needs to get there.
What if they were liable? Say the company that offers the LLM lawyer is liable. Would that make this feasible? In terms of being convincingly wrong, it's not like lawyers never make mistakes...