However, in the click-configuration top menu items are buttons. Which are legitimate control elements, as well. The author also makes this distinction (a link n

However, in the click-configuration top menu items are buttons. Which are legitimate control elements, as well. The author also makes this distinction (a link navigates, a button controls) quite clear. As for menus, these have been around for longer than the web itself. (In the beginning, these were just an alternative way to display an array of related buttons, compare the Xerox Star.) Regarding the ellipsis, while it's true and recommended for menu items, this is not applicable to menu bars (or similar horizontally stacked items, like a bar of tab-options – mind that these are in principle just an array of buttons, as well).