I understood the new lounge offering was being reasonably well received at least outside of London in the UK. The biscuits are if anything of higher quality than Walkers and the cake offering is limited to during the afternoon but again of rather better quality.
Given that the new contractor is Baxters who have a rather good reputation, I doubt they have gone in to this to offer a lower standard of service. It would not be good for their reputation.
Many staff are unhappy with changes, it may be that they are being expected to work harder and it’s inappropriate for a lounge manager to comment that complaints are flooding in.
Of course, if BA discontinue F service there will only be one lounge but that’s all in the future at present.