Yep, you’re absolutely right that we should have a nice textual diff for all our policy docs. We wound up defaulting to Word (and exported PDFs) when starting out, because that’s usually the best way to collaborate on documents with lawyers. But of course it’s not the best way to collaborate with the public.
I think the team is pretty aligned on moving towards nice, diffable, open formats for our policy docs in the future. For now, Word is all we’ve got. But Kenn White did an awesome thing and extracted the text to do a public diff: