Not in manual form either. this was never a problem on CT.
Must be the poor bhp output of the AT

How could they tell it was the DCT that was causing the problem?
They cannot reproduce the issue at will; otherwise, it would have been easier to escalate it.
But, seems like the symptoms looked similar to you releasing the clutch too fast in the 1st gear on a Manual version. The engine stalls and the DCT owner has to restart the engine. Some dropped their bikes because they were in the middle of a turn from the traffic lights.