Aviance staff getting their wires crossed. I suspect myself that leaving Oneworld was on the cards with the old management team but unlikely at the moment or for the immediate future. However there are funny things afoot (i.e. American Airlines introducing a competing service to ORD and BOS from next summer).

Aer Lingus no longer do third party ground handling, for anyone, period. It probably didn't go down well with BA and IB (against the 'spirit' of Oneworld if not the letter of the law) but was since in their business interests hence Aviance getting the contract.

Along those lines third party lounge access was no longer an option (for business class BA pax) in the Gold circle lounge however you CAN still use it as a BA Gold or Silver and traveling econ on any Oneworld carrier. Imho opinion though the Anna Livia lounge although smaller is usually much more quite and closer to everything.

Not sure why change of Pier but it's welcome especially during the winter months!