For these folks, putting deliberate effort into change logs, release notes, and documentation feels wasteful.
My hunch is that this is due to a missing feedback loop: we are unlikely to get feedback about documentation, and more likely to get feedback on our project’s code.
My own writing improved after a past project had a strong feedback loop with my documentation’s intended audience. This has been so damn rare in my career, that it’s never surprising when I meet programmers who are uncomfortable with technical writing.