What ever happened to GET the Collective DOWN on any low Rotor rpm?
That comes across as very arrogant and belittling, especially as we don't know the details of the failure. How do you know the failure involved low rotor RPM? If it was a runaway up, rather than a rundown, the opposite might have been true. There are other scenarios which could possibly result in the aircraft ending up looking like it did. The rotor rpm might have been used up in the last few feet, cushioning the touchdown over what looks to be a very restricted area.
Having flown this sole type for the past five years I have to say that that the engine display (strip gauges) are not the clearest ones I know.