It seems that he owns a property that has a path that the public thinks is public property. It seems legally the property is private. At least, I have not been able to find an easement description.
In a state and country where the notion of private property constitutes a sacred principle, it seems to me he deserves compensation from the public. If this happened to me, I certainly would demand it, but I am glad a rich person with resources can fight this for me. Otherwise, who is to stop people onme neighborhood to cut through my property to access the park behind my house?