As an argument for why this should be implemented: because it copies Gnome Shell, and Gnome Shell's keyboard navigation is the digital embodiment of everything that's wrong with user interface design in the broadest conceivable sense.
As an argument for why this should be implemented: because it copies Gnome Shell, and Gnome Shell's keyboard navigation is the digital embodiment of everything that's wrong with user interface design in the broadest conceivable sense.