I did a 3 year stint with the original pre-merger NYC-EMS and incidents like this were very very rare. Obviously the EMT driving the bus against the red light is history. I'd venture a guess that the EMT driving the other bus that had the green light is updating his or her resume because even in NYC only an NYPD rmp responding to a 10-13 or even an 85 forthwith blows lights no matter the color without penalty just as long as no civilians suffer injury or death as a result of an at fault collision. I'm not for or againts that type of response but it is what it is. FDNY has no such problem because the ear splitting horns and sirens of those beast automatically parts the sea.
On another note I could never comprehend why pre-merger NYC-EMS now FDNY-EMS never considered using a blended emergency response system. Instead of each bus having two EMT's or two level 4 Paramedics just have an EMT and a level 4 Paramedic in each bus. Saves time and possibly lives of the sick an injured when a BLS bus calls for an ALS bus because their skill set doesn't include level 4 or even ALS skills when needed, Shame.
I don't know what FDNY-EMS emergency response policy is now but anytime we announced a 63 and hit the button on MODAT our sirens were on. Also that farce about BLS buses having to turn our sirens off two blocks from the receiving hospital as not to annoy the patients was pretty funny. Like what were we to do with the sirens to alert traffic of our presense in between where we were to them? Medic buses didn't have to suffer the indignity because we were on the biophone with the ER doctor.