As someone who’s been both a software developer and a technical writer, I agree that a lot of these problems seem best suited for a technical writer. The expertise with creating different types of documents is valuable, of course, but there’s another benefit: The organization committing resources in the form of making it someone’s entire responsibility.

While I think updating reference documents lends itself to subject matter experts (especially in a project where this approach is already successful), I think structuring them can be separated and given to a technical writer with more technical expertise or a developer with more documentation expertise.