Interesting thoughts. I was under the impression that a windmilling prop produced more drag than a stationary one. I thought that a windmilling prop did produce lift but it is now in the wrong direction. A feathered prop is the best solution but most ppl training aircraft dont have this feature.
The main thing is to fly the aircraft. Remember you have more chance of surviving going into the fence at the end of the field on the ground doing 20 knots than stalling in from 100 feet short of the field.