He was right. Tail rotor failure is pretty hard to recover from at a hover. It gets even worse if a portion of the tail rotor seperates from the aircraft because it affects the CG of the aircraft, which further affects controllibility. Your best hope is to fly out of it with forward cyclic if you have the altitude, gain and maintain airspeed via translational lift, reduce collective and streamline the aircraft to reduce torque effect and gain directional control. Then you need to find a suitable landing area to execute a run on landing and gradually reduce collective as you touchdown.
FRiend, the only thing I remember from the crash is that my pilot did the right thing and that he was cool and saved my and his life ( and a Vietnamese interpreter) , if I hadn’t lived I wouldn’t have 2 great adult kids right now :-)