Got it, thanks for the explanation. Not sure what "bake" means either exactly but it seems to read like it fixes versioning or sets up specific configs / changes such that you are not tied to the update / release cycle of the larger app.
In my experience, setting it all up and getting dependencies is one of the pain points with react, so it's nice to get some sane defaults and get to writing your app. But it is nice to take the time to do everything manually at least once to see what's under the hood.