Why wait for a click? Each ribbon tab has submenus with their contents already visible (no necessary click --> hover/click --> hover in submenu without letting your mouse leave for even 1 pixel) and the state of each option represented in whatever way is most convenient (button, toggle, dropdown, etc.). A menu doesn't show all options in one category at once, doesn't fully show their state, and closes itself every time you mess up a mouse movement if it's programmed badly. The lack of names can be bad, but the learning curve for identifying options (hovering and seeing the name) isn't worse than it is for finding options in a menu (searching every menu until you find the right option).