The auto shift doesn't work properly anyway for spirited driving. You kick it down, give it a squirt and back off and they hang in gear revving too hard in overrun for too long. This isn't a F8x thing, my wife's X3 M40i does the same
Automatic's for cruising and shopping and the paddle shifts are for spirited driving to manually select the right gear at the right time I think
In auto, the engine's fluffing on traction control holding gears too long where in manual mode, you can short shift it to a taller gear like flat changing with manual dog box. The DCT's a great trans to use manually and much more engaging than auto mode when driving the car hard. As far as spinning crank hubs, I can't find any information about GT4 race cars spinning them that are subject to sustained high revs and driver errors and use the same engine and timing components as the road cars.