I think the use of POV and other camera movements is just to demonstrate the situation of the shot and emphasize the feeling of the moment and then transfer it to the audience. It gives a rythem to the silent picture as like we're watching the motion in a harmony. The montage, camera movements, angles, framing and composition in general are meant to engage the viewer and the picture together which I truely liked even though I haven't watched the whole film. I cannot argue on technicals but that's what I said all I felt on emotions.
