Interesting, thanks. Indeed the changes that I brought over from the Contributor Covenant (and that were also there, albeit more verbosely, in the Django code of conduct) have the purpose of making the text more specific in case "being excellent to each other" just isn't enough. We also have the separate conflict resolution guide that covers the third point that Matt made in his post.
Having some confirmation that those things *were* missing from the current Fedora CoC is good. In fact in the meanwhile I found a few other cases (such as the Microsoft open source code of conduct,
https://opensource.microsoft.com/codeofconduct/) that merged a less prescriptive text ultimately derived from Fedora with parts of the Contributor Covenant, so it looks like others have had the same idea in the past.
Paolo