No Fly Zone,
The "Smart Pilots" you are referring to at following the airports recommended noise abatement departure profile for a Visual Flight Rules departure from Runway 21, namely a slight left "dog leg" turn to overfly the length of the golf course. An emergency landing at the golf course could just as easily be initiated from a straight out departure.
The "Noisy Jets" your friend refers to (Or any other aircraft on an IFR flight plan) fly straight out because they are on an Instrument Flight Rules departure and are required to maintain runway heading until a point that is approximately over the shoreline.