That's not part of Redux, it's a separate design pattern you can use with any Flux architecture. React-Redux doesn't even require you to do it that way, and for good reason: you might not need it. There's nothing wrong with just importing a store reference wherever you want it. That's a totally reasonable pattern for some applications.

This illustrates my point I guess. There's so many people thinking about how to architect and implement React applications that there's a lot of cargo-culting.