Um... i think I get your point.
The Authority has for years been trying to convince CHC (and Bond/HS before them) of the advantages of North Denes being 'Licensed'.
There is no reason the aerodrome has to be licensed, and so to date it is not.
I think you will find that a fairly punchy cheque will have to change hands to purchase any aerodrome license. So the owners of the aerodrome avoid the costs and also the obligations that come with it.
Rest assured that if it had to be the Authority would ensure it was.
Maybe the day will come.