I think it's the opinion of most React developers that state specifically pertaining to the presentation of UI controls (and not the general UI, which of course

I think it's the opinion of most React developers that state specifically pertaining to the presentation of UI controls (and not the general UI, which of course depends on Flux state) can be left in the React component. They do, after all, support having their own state - so that functionality should be utilized. Also declutters your app state.