That seems shockingly expensive, but it's the big, expensive city.
How many man-hours on that job for three people competent workers, would your guess, if one climber and two greenies did it in one?
I suggest you teach that guy never to have the rope behind him, always neatly in front. Always good habits, so when the a storm comes, or people are 'off' because of sickness, tired, whatever, they can work with ingrained habits. Such an easy way to have things go wrong when its not such small limbs on an open lawn.