I think thats because the concept of "phys ranged" is flawed from inception - generally jobs are balanced in the role - the original Phys ranged was "a support while throwing a bit more damage then healers" but that was broken once machinist arrived. Personally I'd roll Bard and Dancer into Supports with Healers and Machinist into Scouting with Vpr/Ninja and call it a day.
