That hook blade is easy to figure out, it would grab the canopy lines pretty well; and the blade is a GP design, for slicing anything. I guess that it what they were aiming for, plus it is a switchblade from the sounds of it.
I have a funny story about switchblades, a WV State Trooper showed up at a drill, and was selling them from the trunk of his patrol car. At the time, they may have been illegal to own in WV; and when I brought that up, he gave me a "Don't worry about it." look. ....I have lived an odd life.
I have learned to roll with the punches though.