There are many clues that this is a fake. The wash from the boat towing the "shark" is briefly visible. The caudal (tail) fin of a real shark swimming on the surface usually is visible. A real snagged shark would not swim in a straight line for that duration.

The only thing cool about that video is that the guinea pigs would be tasty if they were roasted. GAFL. Bring on the the hamster eatiing brocoli please.