The first section reads as if it's explaining why state management is needed at all, not as if it's giving one example of something state management is good for

The first section reads as if it's explaining why state management is needed at all, not as if it's giving one example of something state management is good for. I couldn't make sense of the second section either. It sounds like it's recommending a global store as the solution to updating a single component. The correct state management for a single component is what comes with React.