Hard to see what he’s doing there with the right side of the video covered by a screenshot.IMO the right side screenshot is to give the viewer a reference point since the camera angle was cut off at the pole the one way sign is on.
Like so much else it's left to the imagination as to what happened behind the still shot, unlike when the camera was eventually panned to show the whole area with a VERY wide view.
We're truly lucky and fortunate that "someone" was there at that most auspicious moment to pan the camera and capture events as they unfolded.
(do I really need an /sarcasm tag?)