If we're going to raise the bar and get some innovation or progress, why put it just out reach. Or within reach of already deployed technologies all we get is people stretching that extra inch to be within the definition, and progress slowly inches forward.
Why not strive for progress and to be better than the baseline.
Because it's better to make actual progress toward an incremental goal than to just sit there and have nothing happen. Telcos, who have phone lines everywhere, can't do 10/10 without being cost-prohibitive in many areas (they can't even do 10/10 in town in many places).