Earlier quoted context omitted.
> The weirdest thing in the Google presentation is that several sections had presenters talking to a different camera than facing the screen. That just felt very strange. B-Camera angles are common in interviews. It's to help create a less formal and less stuffy 'presentation' like feel. It's intended to be more of a "you're standing there, somewhat behind the scenes" feel.
It is also one way to obscure the fact that someone's using a teleprompter because it is more difficult to see that their eyes are moving back and forth.
From what I watched of the presentation, there was also a fair bit of moving around. In my studio, we primarily used it as a way to hide main camera adjustments in the edit, usually from the interviewee changing positions, slouching, etc. Generally, a high enough quality production will never rely on a single camera regardless.