Sorry correct me if I'm wrong but wasn't the whole concept of A days brought in by CX a number of years ago on a trial basis that they said could be removed if it wasn't working out for them in the future.
There has always been the danger the A days would be removed when they ceased to be useful for CX.
It is a difficult thing for the based commuters to swallow I agree, they have setup their lives under the current climate and it's not fair to move the goal posts yet again.