You're right.  I was wrong in my thought process about this, and it was probably dark enough out that there wouldn't have been any ghosting from the dragged out shutter.<p>Add-on: If the light source was constant (not strobes), then I think the shutter speed argument stands.  However, I can't imagine that this wasn't done with strobes.  Furthermore, that the background was exposed at all suggests some shutter drag?<p>I am realizing that I need to spend more time playing with my cheap off-camera flash set-up.