Graybeard;
Not challenging the view, and without desiring to re-open that conversation, I don't think too many fliers here disagree with the theory - it is a straightforward outcome of insufficient thrust in combination with an autopilot trying its best to stay on the glideslope. Up to the point where the airspeeds went below Vref, it was what it was for both crews. I don't believe that phenomenon has ever been in question. It just isn't relevant to the outcome of the BA038 event.
For me and I think for many, the discussion has always been about what was happening in the cockpit of THY1951 after the airspeed had gone well below Vref - fourty knots below in probably just less than 40 seconds. We both know that that is a very long time in the approach phase. The BA038 crew realized that the power wasn't coming up to maintain the airspeed and took what action was available to them with degraded engines, while the THY1951 crew did not take any action until about 400' when the airplane was around 85 knots. "How is that to be explained?", was the question at the beginning and remains so.
Cheers,
PJ2