Mickj3 Not sure if this has already been mentioned but I was surprised to see the escape chutes on the port side (side of the engine fire) being deployed. Passengers escaping into a danger area (engine fire, fire service vehicles manoeuvring etc).
The wind had started to pick up a bit out of the NNW. Upwind on the fire side seems like as good a choice as downwind and the smoke side. Unloading twice as fast from an aircraft on fire may have entered the decision as well.