>If they can get airborne then the firefighting aircraft can fly too?
The news helicopters are flying at much higher altitudes away from terrain, powerlines, towers and smoke.
Aerial firefighting is incredibly dangerous even in daylight in perfect conditions. Here you have high winds, updrafts, downdrafts, smoke, and any number of power lines, radio and TV towers and who knows how many psycho's flying private drones.
You'd have to be insane to fly fire at night.