AI impacts so much. So many white collar chores just get obliterated with AI. Legal & regulatory docs, production planning, sales materials, etc. Just yesterday I used AI to generate 235 new system docs based on our codebase, and added automated .md -> html publishing so final drafts go straight to the website. This work that would've taken a contractor 1-2 weeks got done in a day, by me, someone who definitely isn't a technical writer.
When the person who knows what's needed can handle the technical execution themselves, you no longer need that second person.
I certainly wouldn't say you need "more humans"