2 comments to a good question.
1. Boeing have just introduced a new EGPWS call on the NG. It is combines "Speed" & "Low". This is unambiguous and is after Turkish Airlines Schiphol. Perhaps this has been done without altering the FCTM.
2. When giving training I emphasise the correct Power/Speed/Att. for whatever the configuration and task in hand. Once, when LT to a student I had not seen in the sim I noticed he was not scanning the N1% on finals. At 800' the speed was correct but the N1% too low. As the speed dribbled lower there was not reaction from PF. He was oblivious. I waited and at Vapp -3 I called "power". The speed was within limits, but approaching the lower limit and the root cause was power. I expected PF to scan the N1% and realise the error. Nope; without looking he reduced the power even more, quickly followed by my hands pushing the T/L's up. I realised my mistake was to not be precise in my call. If I'd called "power too low" or "increase thrust" I hope PF would have reacted correctly. Being a student he reacted without thinking or scanning, and it was wrong. It was not a time, as with other parameters during a relaxed moment in LT, to ask " what do you think about the power setting", but give a precise instruction.
Thus I'd tend to agree with the Centaurus's idea.