[bonch]

It's not "utter nonsense". If your interface is so confusing that you need to bombard users with a startup tutorial, your interface sucks.

Standing next to someone and showing them how something works is exactly what the visual cues described in the article do, but in a non-intrusive way that doesn't require users to memorize esoteric gestures for common functionality.

Have you not learned the lessons of Windows 8?