In the world of logistics (or mechanics!), simplicity is its own reward.
If one always waits for something to be 'broken' before we fix it, we risk much.
Dividing the US into three unifrom geographical areas simplifies the site selection rotation and process, provides a larger pool of resources per region, and expands the number of potential sites-per-region to investigage and select.
It allows for predictability of which year rallies will fall in which regions and still doesn't deprive us of one single acre of Americana to explore.
For me, this is the appeal of the original poster's concept.
As for what else could be fixed, that would open the 'alcohol sales' can of worms along with the arguement for greater rideability (scenery, challenging roads, tourism) at a selected site, vendor attractiveness, a 'consumer-advocacy tent' (including collecting signatures on petitions to BMW NA), etc.
It's a conceptual suggestion that deserves a second look before being too quickly dismissed by the BoD...........I hope.