I think the proposal looks good. More trailer parking is good, as in the summer on the weekend, if you don't get down there early you might as well forget about going for a sail. Though you would still have to wheel your boat 150 metres or so to put it in the water (assuming they remove the chain blocking boat access to the beach, wtf).
All that is missing is a breakwater and a floating jetty or two, as the East coast bays has no decent place to launch a trailer sailer.