Yes, ideally a editor would work without any configuration, but unfortunately I haven't met any emacs user with sub 200 line dot files.
I personally cannot remember more than 20 hotkeys to save my life.
Also I find the most time-consuming part of my work is actually thinking, not clicking around with a mouse. so I don't really need to spend month to remember all the hotkey just to save 2 seconds clicking. In fact, slow down and click couple buttons to commit gives me a bit to rest and enjoy the moment when I have finished a task...