I agree.... The chances that it is a shadow are much higher, with all of the lighting from the cameras. Could have been a number of different sources, but with all of that light it is easy to have something like this happen. If it were in the dark, then I would be pretty damn convinced.
And I am a die hard believer in ghosts. I used to be pretty skeptical, as most who haven't seen one are. But once you actually witness an event or are in the presence of a ghost, your opinions change quite quickly. After I saw my ghost in Japan, I have forever been a believer.
So I am much more accepting of the possibilities of ghosts here or there, if the evidence or footage is good enough and without lots of plausible explanations.