It is almost a kind of weird bigotry against the HA. And these days the cops will take any excuse to totally go over the top with every kind of asset available to them.
I'm reminded of the F train party I attended about four years ago. The whole train was stopped on the platform before the Coney Island terminus. Then a battalion of cops stormed the train -to squelch harmless partiers. Swat teams tricked out with massive body armor, heavy machine guns, dogs; regular street cops seemingly out of place; and lastly and most menacingly a squad of outright goons, young guys in their early twenties all with shaved heads wearing blue windbreakers with absolutely no insignia or identification, they all carried one item, a truncheon the size of a bat.