Think about it!
As I understand it MF is proposing and encouraging people to fly in and be refuelled on premises leased from the A&BC therefore bypassing any ban as it wouldn't be the "airport"
You might want to think about that long and hard. What makes you think you'll get permission to re-enter the airport ? PP can work both ways!
And of course ignorning a refusal would almost certainly breach the ANO.
You can always trailer your (freshly refuelled) aircraft away though !
On the insurance front I doubt any airfield has insurance in place that covers the sale or fuelling of motor unleaded for aircraft purposes. Be interesting to see the policy though!
GM