Felipe Contreras [off-list ref] writes:

The typical case is what git was designed for: distributed remotes.

It's only the atypical case--fetching and pushing to the same
remote--that we need to keep an eye on.

Yup.  Avoiding the phrase "centralized" and using "same_remote"
makes quite a lot of sense, too.

Overall the end-result of the series is quite pleasant read, even
though some intermediate states in the middle risked readers to
worry about "are we going in the right direction?"

Well done.