To have the same overview as in cms 3.X - all languages, all publishing states, in one view. When having a few languages, toggling through each of them is kind of clumsy.
I really dont see why this could not be done? If it’s because the “in_navigation” Boolean is per language in v4, that could be integrated somehow, in the language column…or in the change form only? The general overview should be far more prioritized, IMO?