Good discussion but miles away from the point. I see the speed with pitch in the PPL as an exersize which needs to be mastered early in the course and repeated in other exersizes until it is second nature. He may use the combined method eventually.
It's like the flight at minimum speed exersize. Flying around with a high power setting on the wrong side of the power curve. It is only a demonstration. Not an everyday technique.
D.O.