What if it were for less nefarious reasons? Perhaps he's planning on shutting the entire area down from human access completely and letting some flora and fauna having a refuge area.
Even if it were for that, Vinod has been a bad actor here, so if this were the case the ends wouldn't have justified the means. First he fought to not reveal who had bought the land, and now he has been trying to overpower the people (represented by the govt) via his wealth and litigation.
For the record, its not that great of a surf spot, but this is more about letting someone establish precedent and thus leading to more beach access rights (Malibu...) getting chipped away at slowly but surely.
It would be great if we had Hawaii's right-of-way laws...
And to the original poster - not sure why you were down voted for asking a question.