It would perhaps be nice if there was a recommendation that the "increase ref speeds" switch should be linked to the GPWS flap selector switch and the software be modified so that the speed bugs were automatically reset by whatever amount was required for the selected flap setting, or at least were moved so they could never be set lower than the top of the low speed cue.
The problem with this proposal is that the calculated landing distance needs to be linked to the bugged Vref. If the bugged speeds are increased, there needs to be a new landing performance calculation, which considers any runway contamination, and a new comparison against available runway length.
The fixes needed, in my opinion, are much better stall recovery training and better rested crews.