I think you're over-thinking it. I looks to me like the POV is if the camera is sitting right on top of the engine to give us a clear view of R2. Zooming out or backing further away would cause the engine to come into frame and obscure our view. While Ronster's mock-up looks nice, the engine part he has added would need to shift to the left. Given the angle of the back window of the cockpit, the front of the left engine would need to be further left in the frame than the right one, which is already hidden behind R2. Doing so would thereby cover up the lower half of R2's dome. Just MHO.