The Boeing FCTM does recommend manual thrust when A/P disconnected -have not been able to find a valid reason for this apart from the Air France accident in PPT 10? years ago.A contributing factor was A/T use when flying in VNAV. At the MAP, the A/T transitioned to GA mode and a disconnect at that time would have been appropriate. From memory one of the recommendations was that this feature be advised to pilots - never happened. Instead we get the disconnect recommendation.
As the VNAV approach is now programmed on our 767/744,this will not happen - A/T maintains CAC speed.
The A/T used with manual flight works extremely well - if you don't like it disconnect it - the usual disclaimer.
I have used it for 20 years on 767/744 eg excellent for the old HKG and Carnarsie New York 13 approaches and have suggested my students do the same.