It's designed to seem like live tv with the initial scene always being a kind of casual conversation before the visuals switch.
Until recently the idea of it being a gentle 'one take' conversation was quite convincing as not much was really said, but lately the conversation has become a little more of a monologue that is precise and detailed and delivered quite rapidly.
I don't mind the new style but it made it seem more like there was a written out script, and the idea of a voice over suggests that this might be so.
Originally Posted by cork_screw
There are no cue cards. This isn't live production. It's called a VO, or voice over (I work in television btw).