On your last point, I think it has a lot to do with how it's introduced in organizations. If everyone just goes hog wild with it, enamored with their newfound productivity, not only will the little gains be lost, I'd argue all the generated noise will be a net negative. And people will hate that.

That's the result of AI adoption in a company being people just getting a subscription and doing their own thing, instead of systematically introducing and finding a common ground; a trivial example of that would be open source projects increasingly adopting LLM policies to get everyone on the same page.