That was actually the early advice for how to use Redux, but experience has shown that leads to less than optimal performance. In fact, benchmarks show that _more_ connected components usually leads to better perf, as the cost of notifying more subscribers is less than the cost of more wasted re-renders.
See the following links for more info:
- http://blog.isquaredsoftware.com/2017/01/practical-redux-par...
- http://redux.js.org/docs/faq/Performance.html#performance-sc...
- http://somebody32.github.io/high-performance-redux/