Globalization and encapsulation are different points on a spectrum, and both have benefits and disadvantages. It's all about tradeoffs! :)

I've definitely noted that React devs seem to fall into either a "component-centric" view of the world, or an "app-centric" view. Both are okay.

I'll also point out that the Redux FAQ explicitly says it's up to you as a developer to decide what state should live in Redux, and what is better suited for local component state: http://redux.js.org/docs/faq/OrganizingState.html#organizing... .