You compare this to your 2 APR'd Golfs...when I was doing my research into maps I looked at hundreds of rolling road graphs just to get a feeling for the average power/torque gains, and Revo always came out top for higher power/torque than APR.
To put things in even more perspective, on my stage 2 GTI the clutch would began to slip after the map had been on for around 5K-7K miles, which I accepted would be normal. When I was returning the car back to standard I took the APR RSC exhaust off first. After that, the clutch slip basically stopped altogether. Goes to show you how such little, insignificant things just push the clutch over the edge.
I'm not sure you really have a case, maybe your car has responded especially well to the map and is pushing more torque than other TSI engines? Or maybe it's your driving style and you frequently load the car up in a high gear? (i don't know how you drive obviously)....