I doubt many London airports are that keen about the prospect of large numbers of VVIPs flying into London.
You have a very large number of extremely demanding customers, all turning up at once, with very little chance of much repeat business in the next few years. The complete opposite of what most businesses want - namely a consistent or long term predictable level of demand from customers who buy the product regularly.
The aviation industry struggled big time to cope with the return of mass demand to fly after Covid