Psy-Ops in Union Square

Has anyone else noticed that the public address system on the Lexington line platform at Union Square is an endless, looping soundtrack of increasingly urgent entreaties? It begins with a woman's voice that says, "Ladies and gentlemen, your safety is important to us. Please stand clear of the closing doors." Immediately following is a man's voice that says, with slightly more import, "Ladies and gentlemen, your safety is important to us. Please stand clear of the moving platforms." This immediately segues into the woman's voice, who adds, liltingly, "Ladies and gentlemen, please step aside to allow the passengers off the train." Then the man jumps in and says, almost accusingly, "Ladies and gentlemen, please report suspicious activity to a police officer or an MTA employee." Periodically a real live human will break the monotony by saying something like, "Ladies and gentlemen, there is a downtown local train approaching 23rd Street." Then the automaton woman starts in again with the moving platforms warning.

Is the MTA really just gung-ho about warning people, or is there something more sinister going on? Is this all part of a plan to demoralize commuters even further?*

*Amateur researchers please make note: My 3-month anniversary being off of the pills is when I start having delusions that the MTA is going to kill us all.