As a videomaker, I was a little stunned by how 'imperfect' it was, for a few of the shots.

It has to be a conscious artistic decision, because it would be trivial to 'nudge' the frame around in an NLE (we'll assume Final Cut here, right?) to make sure the Apple logo never moved.

There are also some shadow inconsistencies that could've been skipped, there's no need to actually swap out the entire laptop for each shot, could just use the logo/sticker area.