If you look carefully at the article, there is a short, short sentence about the mechanics (I had the same wonder myself).

When I first saw the video, I commented on its lack of content to a nearby flight attendant, who replied -- literally in a huff -- "He's the first CEO in 17 years who did even that."

So I suppose this video is not directed to customers, but to employees. Wonder if that means they just need to show it in first (employee) class?