I also seem to get it when pull back hard in the WW1 arena and then role fast....either ripping my wings off or crashing....
This reinforces the belief that it is pilot/operator error. Had you induced DMYCSR
before piltoing your aircraft so violently that it snapped-off and lost
major structural components, you wouldn't of been able to damage your aircraft via hamfisting the stick due to the signifigantly reducing input that the DMYCSR system impliments.
In other words, DMYCSR did not roll your airplane so fast that it ripped your wings off and thus the resulting crash, it is impossible.
Now, it may be only partialy your fault, being compounded by an improper (rushed or default) joystick settup. Film would help conclusively determine if it is pilot error, hardware/stick issues, or both.