As far as I can see, the name of a page (in admin) is the same as the title for the page.
In many cases you would want the page name to be something else to better grasp what it's about while glancing through the page admin. Perhaps you have a page with the title "This is what it is when it all comes around", which could be tagd as the "about" page and thus want it to be called "about" in the page listing in admin.
Yes, you could add a custom field for another title but I think that would be backwards and not user friendly.
Perhaps an additional name-field in quick-edit which will override the name (not title) of the page in admin? In the above case with page named "This is what it is when it all comes around", you would just quick-edit the page and enter "about" in the name field.