I read that, and thought the same thing. If it was "sabotage" that would be crazy to cut a cable under such a load. the cable is actually 55mm, 6 strands.
if they are calling it that, must be some evidence to support it. I heard people in the area describe a loud noise, but what they described sounded like just what you would hear if a cable snapped and "released the load". Something @jon hears everyday in the bathroom.