Gaseous,
steep turns will increase RRPM but with the expense of increasing ROD. Also when you roll out of the turn the RRPM will go back to where it was on the entry to the turn.
Someone mentioned they though the article was saying that aft cyclic was more important then down collective. I dont think that was the case. He did make the point that if the engine fails while fiddling with radios or whatever it may be, dont just reach for the collective to put it full down but reach for the collective while applying aft cyclic so that the RRPM wont decay as much while you take your one sec to get the collective full down. I believe the point they were making is that aft cyclic will slow rotor decay enough that you can safely lower the collective and maintain green on the scale.