Why have offset camera placement?
It can be used with different intentions, mainly to give the footage more dynamism.

The off-camera look gives the impression to be filmed like an interview, with an interlocutor in front of the presenter but off-camera.

Of course in this example there is no interlocutor, it is the camera, so it can make the impression of combining some "behind the scenes" footage. It adds a bit of "production value".

Sometimes the second camera does not film the person's face, probably the hands, probably the full body, and sometimes the interviewer, again not present in this case.

Probably a good option is using two off-camera angles.

It is simply a matter of style. Fortunately, the rules are not carved in stone.



One psychological effect from staring at the camera vs off camera angle is that the first one can feel like someone is "lecturing" you, trying to convincing you.

The second feels more like someone is just pointing at "facts" and you can decide or not to take them into account. That is why interviewed people do not look at the camera, but the presenter normally does.

This example probably tries to do both.