No no no. It could be controllable, but what I orginally meant, was random. Those parachutes of ww2 were not controllable right? So just random swing.
As in wiki: "The first round parachutes were simple, flat circulars. These early parachutes suffered from instability caused by oscillations. A hole in the apex helped to vent some air and reduce the oscillations." "A round parachute with no holes in it is more prone to oscillate, and is not considered to be steerable."
No idea if german parachutes had hole in them, but round parachute like that should always have some random movement from side to side.