Sasless, Nick and Helipedro - the original question was aimed at pedants and instructors so, being both, I gave the standard QHI answer. I suspect that there isn't a training school in existence that doesn't stress that having power in hand to transition is a good thing - but we are talking about training not operations.
In recent years I have seen a definite lack of sensitivity to power limited ops in the military because many front line aircraft are so overpowered - whereas 10 or 20 years ago, many RAF pilots cut their teeth on the Wessex in NI, Hong Kong and Cyprus where being short on power was just a way of life and you learned all the advanced techniques very quickly.
However I have also seen PPL pilots completely ignore their power in the hover and exceed the MAP limit in the transition because they had the 'oh that was only needed during training' mentality.