You are being needlessly harsh. The action was real action with a real person interacting with a real object. The things that moved really moved. The static b

You are being needlessly harsh. The action was real action with a real person interacting with a real object. The things that moved really moved. The static background that no one touches is less useful as a practical object, because it doesn't get uncanny valley. Practical effect doesn't mean the film looks the same as if you were standing there live. A practical effect is still full of weird equipment and often done using miniatures and foam replicas of the fictional object.