Yeah, I think that's the majority of the grunt work done by junior consultants.
I don't doubt that if the high level decision agreed upon is "more layoffs because AI" and they were asked for a 60 page report to justify it that ChatGPT would help inordinately in fleshing it out with something that sounds fairly plausible.
There's a lot of boilerplate that actually takes quite a while to write from scratch. If the people involved have a pretty good idea in their heads of what fundamentals are fairly sensible and which are probably sort of irrelevant or even wrong, something like ChatGPT is actually pretty good at churning out at least a decent pre-draft that can save quite a bit of time. I've used it a fair bit for introductory background that I can certainly clean up faster than I could put together from scratch.
I don't doubt that if the high level decision agreed upon is "more layoffs because AI" and they were asked for a 60 page report to justify it that ChatGPT would help inordinately in fleshing it out with something that sounds fairly plausible.