@ Neptunus Rex ... I'm not sure a long siege is the analogy, but I could envisage some tiresome skirmishing. And that, whilst boosting DH's ego, also inevitably impacts on future bookings.
I know it would achieve nothing for the BASSA "cause", as BA will simply drive their tanks over the diminishing ranks of militant infantry ... but I think there is now a sad disconnect between what BASSA might have wished to achieve originally, and a militant "doing something" attitude that may continue for some time to come.