it presupposes every institution has perfect self knowledge & competence in communicating its desires; no individual human has this, so how likely is it for a larger, less tightly integrated system to? bit unrealistic, no?
what use is an ideal which leaves no room for mistakes?
such a yardstick can never be lived up to, setting the stage for constant disappointment; one can argue it has utility as an asymptote to aim for, but is this really better than setting realistic expectations? the platonic realm has much beauty to offer but it seldom matches ours