That seems unnecessarily cryptic -- the whole HTTP analogy doesn't really work well, or the article doesn't do a good job of explaining it. I know, I come from a place of knowing git and beginners are often confused by it... but surely "checkout a branch, make a commit" has a clearer mental model than "post ?branch!", whatever that is supposed to mean.
I love the idea of building a new Git UI on top of Git primitives[1], but the REST inspiration leaves me feeling underwhelmed; there has to be a more human-friendly model.
[1] https://replicated.wiki/wiki/Home.html