The trouble is "AI" is waaaaay less of a boost to productivity if you have to actually check the output closely. My wife does a lot with AI-assisted writing and keeps running into companies that think it's going to let them fire a shitload of writers and have the editors do everything... but editing AI slop is way more work than editing the output of a half-decent human writer, let alone a good one.
If you're getting a lot of value out of LLM writing right now, your quality was already garbage and you're just using it to increase volume, or you have let your quality crater.