Of course, you're right, castawaydave.
As I said, this is unquestionably a post-production effect.
He's playing a semantics game by saying that it's not a "camera" or "editing" trick. Those may very well both be true statements.
That, however, does not mean that it's not a compositing trick. Anyone with a copy of Shake, After Effects or Motion, or even a more basic compositor could do this in a matter of minutes.