"A big step forward is the Unix-style FMS where you can manage a lot of functions without pressing a button, take a mouse cursor instead!"
That all depends!! In many cases, it can be faster to use a key than a mouse. It depends upon the keyboard, it's layout, the person using it and the commands that they need to execute at that moment. As long as one can choose mouse OR keypad, then it would be an advance. If only mouse, then it is as restricting as only keypad - just restricting in an equal and opposite direction!