Hi Yellow Pen,
I don't think anyone has said they are only getting one local night.
Some of them are saying that they are getting one day off (which is two local nights) after a long haul sector but they thought they were told it would be a minimum of two days off.
One local night would be no days off and I don't think BA would do that although of course WW cabin crew do do back to back trips (which have no days off in the middle) and I know that pilots can bid to do that also.