Archie,
Your response addresses the question that the opening post asks.
Is it the technical/legal/environmental/financial aspects that are the impediments that prevent the modern day Crumps from coming to the fore ?
Are their amateurs who have the creative talent to design a golf course, who would be prevented from doing so due to the issues cited above ?
And, are the financial stakes so high today, that unless someone had exceptionally deep pockets, was eccentric, and loved golf and golf course architecture, that designing and building a golf course for other than himself, isn't feasable.
Does Jerry Rich qualify as a modern day Crump, despite building a course for limited access/use ?