The whole intuition thing is rather questionable. You learn how things work and then you get used to them. It doesn't matter much whether it's an apple icon or a start button. Neither shouts "shutdown!". It's much more important how much work frequently repeated actions take once you know them. No keyboard shortcut can ever be intuitive in the sense you could have suspected what it does without learning about it. But…
The old word interface (not the ribbon) actually did a pretty good job in this. Beginners used the menubar to do things. The options where accompanied by icons ("ooh, that's the same as the one on the iconbar.") and keyboard shortcuts ("What happens if I press Ctrl - S?"). The user interface doesn't get in the way of power users and teaches beginners and intermediate users.