To make things even weirder, there are a bunch of cottages/houses on the property that are being leased to occupants (this was done by the previous owner). From what I understand, they have a few more years on those leases before they can be evicted (I am very rough on these details). So if you know someone in those units, they can hook you up with access to the beach (I think).
Bascially, it's a crappy situation for everyone. I get that Khosla wants some private beach front property to dump his money into. And really, the previous owner should have set up an easement (easements are the primary reason Malibu is still publicly accessible), although he probably would have got a much lower sales price. And of course, if Khosla gets his way, the public will be getting screwed over pretty bad. With the growing population, beach/coastal access is getting harder and harder (try going to the beach on a warm, sunny weekend, it can be a parking/traffic nightmare). Reducing the number of coastal access points is just going to make things worse, and it is going to continue to have an impact on the next generation of Californians.