It's in the Details

Has anyone else noticed in the new Beatles Rock Band commercials: when the black electric guitar is handed to a band member, it has no strings on it? Just the neck and headstock appear, but clearly the guitar is unstrung. When he's shown playing it, the strings are on, for a nanosecond.

My theory: And implicit suggestion by the advertisers to demonstrate one needs no strings to be able to rock out, such as on the toy guitar that comes with the game. Think I'm wrong? That would be a pretty big oversight for people who are trained to research and pay a lot of attention to details. I suppose I could interpret some poetic meaning, but I doubt that was the intention of Madison Ave.

The unstrung guitar is at :10 and the guitar, suddenly strung, is at :13.