Just as it seems idiotic for me to debate when I think it's just inevitability
For it to become reasonably well lit outside the easy as pie non-permanent circuit area and ACO properties, you don't need posts outside the fence in the "woods" or someones yard necessarily. It will become considerably more lit with just a few well placed big floodlight towers on the inner chicanes, lights merged with catch fencing / crowd areas, few new overhead banners (or whatever they are called on top of road) equipped with bright light spots in strategic locations.
As side point, I believe some of the already existing lighting at the circuit came at the request of SPEED TV some years ago, whom wanted to have more circuit visibility for their coverage which had darkness hours during daytime in their timezone. So it is logical for people to fear about the lightning levels potentially soon being raised now with wider coverage than ever. There are many parties demanding many things.