In fact, in researching the question, I couldn't find the procedure in some manuals familiar to me so at least some have decided it isn't necessary for normal ops. Perhaps the risk of inadvertently going further, into TOGA, was deemed greater than the small benefit. In my experience, the autothrust system does an extremely good job.
PJ2
The first time we have heard about that procedure was in 2004, I believe.
It was the subject of a
FCOM BULLETIN called
AIRCRAFT HANDLING IN FINAL APPROACH
The interesting part is, that procedure has proved to have more drawbacks than advantages, so, as discretely as it could be I must say, Airbus has decided in 2009 to not recommend to use this procedure any longer.
If the A/THR performance is not satisfactory, the flight crew should take over and control the thrust manually.