I hate to disagree but I believe we were told J class has been for a while now the highest revenue producing cabin in the airline - also there was an article in the BA News suggesting a full J class cabin to HKG bought the flight to a break even basis - without them the flight generally lost money.
My best wishes to all former colleagues though - times are hard and I don't want to see anyone lose out. Though I think some trimming around the edges is going to be inevitable.