Safety duty usually breached, claim very promising.
The new thesis I.L.4 (ZVR 2023, 469) requires mechanical securing through padding for mobile snow-making devices on a support frame in principle. Pure optical securing through stick nets is now only sufficient in justified exceptions. Missing padding despite suitable construction therefore fulfils the liability-relevant security defect.
Evidence: photos of the device (front, side, with scale), position on the slope, steepness, sight conditions, stick net location. The device's model designation (type plate) and the ski area's documentation of its padding practice are central in litigation.