During my time as a simulator instructor we were tasked by Boscombe Down to experiment with tail rotor malfunctions
Sorry to say this-but this is where a lot of "false advise" comes from, as the simulator only simulates whatever someone programmed into it (usually based on facts and data fed from live aircraft, but-in case of emergency procedures-mainly from "pilot tells" stories)..
To simulate the effects of a tail rotor failure, someone would have to hook up computers to a helicopter in flight EXPERIENCING a tail rotor failure.....
Even then, this data can only be used for this specific model (although general procedures might result out of it).
For many years, pilots were told that one is able to "fly away even with a separated tail rotor", as long as one has enough airspeed.....this is slowly changing now due to studies carried out like the one in the UK....