I always felt this was something of a knee-jerk reaction to the BKK incident. The accident report went into great detail regarding the F25, idle reverse policy and aquaplaning. The facts of the case are that the aircraft touched down with NO autobrake, and neither reverse nor manual breaking were used until it was too late due to crew confusion as to who was actually flying the aircraft.
Operators I have worked for have left it up to the crews discretion where there is a choice of flap settings and we use appropriate auto-brakes to make the most expeditious exit (i.e. get the book out and have a look at the stopping distances table!).
Reduced flap/idle reverse landings have economic (especially with carbon brakes) and noise/environmental advantages. To not use them on a long, dry runway seems overly prescriptive to me.