Yeah as Doug said, it's an aesthetic choice, not corner cutting. I mean, if you wanted, it would obviously be far easier to not alter the characters' positions to look better when the camera cut. Going in and tweaking things so they're more aesthetically pleasing is, probably, the opposite of cutting corners!
When people film a movie, they don't tell the actors "hold exactly still! we're changing the camera angle!" They actually do the opposite, and re-block everyone in the scene every time the camera cuts, frequently down to the lighting positions. If it's done right, it generally looks more seamless and visually pleasing than if it was shot like a documentary or something. A lot of stuff in our games is of course shot more like a 3-camera sitcom where there are just cameras cutting between the action, but whenever we can (and whenever the scene calls for it) we try to shoot things more like a one-camera TV series or film.
Bah. I'm trying to find a page somewhere that quickly explains the classic 3-camera sitcom setup vs 1-camera setup, but there really isn't anything jumping out at me. How lame.