For those interested - I e-mailed the New York State Parks Department for clarification on the ban, and this was the response I received.
Mr. (my name),
Along with other groups interested in activities in their state parks, we have met twice with people who are interested in engaging in kite boarding. After discussing all the locations we he have available in state parks on bays, the Long Island Sound, and the Ocean, we agreed that there is not a place with proximate parking where there is not usually a heavily populated beach. Our judgment is that the length of beach needed to lay out the gear used by kite boarders and the potential impact on bystanders precluded us from opening beaches with parking nearby to kite boarding. While those we met with were adamant that they wanted to launch from remote, unpopulated beaches we don’t have beaches that fit that description and that have legal parking.
We could meet again with you and others interested in kite boarding. However, nothing has changed since out meetings of two years ago.
If you would like such a meeting, please call me.
Ron Foley
Regional Director
Long Island Region
NYS Office of Parks, Recreation and Historic Preservation