There is very very small shape, I might even be seeing it without it being there. I've got Swing up to 100 and I'm bowling with Jimmy Anderson, the best swing bowler in the world on an overcast day. I'd expect to see something more than 'well, maybe there is something...'I can see swing in the screenshots. A tiny bit. Im not able to replicate it though.
I'm not expert on vision or spacial awareness, but the screenshots everyone has posted look misleading. I've looked at hawkeye on my game, they look similar, but from behind the bowler's arm it just looks like the ball going from the bowlers hand to the pitch.