Well I don't know who taught you to fly Jets mate but I was taught 30 years ago that Thrust controls the speed ( just like the Autothrust does on a coupled approach,
the Autothrust is in SPEED mode isn't it??????) and Pitch controls the sink ( ie keeps the G/S )Naturally they go hand in hand as one effects the other and yes you could reverse the two if you feel that way BUT that's not the way Boeing and Airbus designed the machine to be flown.
Copy from the A330 FCTM:---
USE OF A/THR
The pilot should use the A/THR for approaches as it provides accurate speed control. The pilot will keep the hand on the thrust levers so as to be prepared to react if needed.
Who teaches these guys anyway????????????