From I.A.T.U. Butler on the CC forum:
The legacy at BA as at Aer Lingus, is a company racked with industrial relations problems, but worse in some aspects, as Aer Lingus pilots did not get involved in the cabin crew dispute there. In fact quite the opposite, they supported their cabin crew.
So the pilots are only "involved" if they don't support the cabin crew. Supporting the CC is being "neutral"
I love these unbiassed opinions.