Pray tell, how is one supposed to control yaw when selecting fuel off with low forward speed on final approach?
That's the thing, in a power-on t/r failure you can bring the aircraft in (usually on a shallow approach so I do know why Eurocopter ask for a steep approach) and when the aircraft begins to rotate (due to the lack of tail rotor control) you can cut the fuel to counteract the effect of the torque on the airframe. Performed well you can even manage a zero or slow forward speed touchdown (critical in some landing areas).
But to answer you question Anthony, the answer is - that I don't know! Sorry.