Kudos, for spotting the Barclay's girl trying to get through the crowd on the other side of the procession.
It's easy to understand how the video taker missed it, when he had all those naked riders right in front of him.
Being able to place where she was trying to break through the crowd makes the whole scenario much more understandable.
Those gawking picture takers

weren't going to let anybody move them from their prime position at the moment of photographic opportunity, especially someone fully dressed.
Give her credit for having the smarts to show them she was the real deal by suddenly appearing totally naked right before their eyes.
And what guy, in his right mind, could ever say NO to a naked lady who looks like that?