I don't see how a small number of rolls could make such dimples as we see here. It would have to be an amazingly hard acceleration one way then the other in the longitude to torque it so. There are no forces opposing the roll axis within the fuselage itself besides than the mass of the fuselage. It would seem to indicate some fantastic jerks one way and the other and I can't imagine such forces unless they were flying well above maneuvering speed.