Looking at the floor plan for Six--------------
--------------I don't see any problem. The stairwell is west of the freight elevator, and out of shot in both of these images:
Two things I think. One is the distance between the elevator and the wall the window is in. Seems too narrow for the stairwell as per the plan. the second is how far into the room the elevator is i.e. how far back you can see on the right hand side again compared to the plan.
The location in the clip looks the same as you one in the other photograph - absolutely. Just trying to make it fit with the plans I've seen of the sixth and the fifth.
Thinking out loud and happy to be shown to be wrong.