Jet II,
I suggest you visit the pensions regulator website to find out what his sweeping powers are, then you will soon realise "whats it to do with him".
I believe it is thepensionsregulator.co.uk
I am not BA but I have been through the same process and had my final salary pension raped and pillaged by the management of Spotty M, unfortunately the advice from Big Balpa was to accept this, hence my fellow colleagues had no stomach for a fight against the advice of the union.
I'd be very surprised if the advice from Balpa is not to accept what ever has been agreed between BA and the Trusties, just my hunch.
Good luck with the fight, I sincerely hope you are more successful in securing what you were originally promised than we were.