For 2 people, maybe; but even then you're doing the equivalent of emailing your entire repo (in a doc) back and forth. Which is how you end up with report.

For 2 people, maybe; but even then you're doing the equivalent of emailing your entire repo (in a doc) back and forth. Which is how you end up with report.latest.2017_0713.new.with_additions.current.adamssversion.ready.lastchange.docx being emailed... And if you have 3 people collaborating, sooner or later someone makes edits to something besides HEAD and then there's a giant mess to sort out.