There will always be anecdotal points brought up about "training", and the police. While we, the enthusiasts, seem to think nothing of spending our vacation at Gun Site, or Thunder Ranch, non-enthusiasts regard that as a "hobbyist" adventure.
To many police, they have a job that requires them to carry a gun. They also have classes that are in-service for other things. Add in court dates, changing shifts, and changing locations, and learning their beat, and see just how much time they feel they have for additional firearms training.
Do we require professional drivers to take additional high-tech driver's schools? Of course not. The fact is that these drivers are much more likely to NEED such skills today, as witnessed by our highway deaths.
Every person alive today could stand to obtain better skills in their lives. Do we require that?
NYC, like any other PD has to balance training requirements with time, money, and the effects of spending both of those. Of course, those members of the Department can use the range facilities during their off-time, and many do. So, counting that MIGHT just skew the reports, so it isn't included.