Do you mean that in the sense of "anyone getting killed is unacceptable" or the sense of "we need complete separation between cars and pedestrians/bikers, somehow"?
The rule of thumb for almost completely eliminating pedestrian fatalities is complete separation or a 20mph speed limit. A 20mph speed limit is far more feasible for the 5 boroughs than most other American cities.
I think there's a third more charitable reading: that current injury and fatality rates are still too high, even if they compare favorably to the rest of the US's rates. It's unrealistic to have no traffic injuries ever; this doesn't imply that NYC can't do better.
