While I could see a large 10Kg drone posing a severe risk, the actual model shown in the programme would in all likelyhood be chopped into pieces without the pilots even being aware of it. There might be a chip or two in the rotor paintwork from contact with metal parts or battery pack, but if tail rotors were that vulnerable, every bird in the sky would present a lethal risk.
Nice to see an air accident depicted without the airframe disappearing into a fireball the moment it makes contact with the ground. Frighteningly realistic.