BALPA are not interested in FOs terms and conditions..regardless of what airline it is. BALPA CC reps are mainly senior captains and hence it's not surprising to see most BALPA action biased toward senior pilots. Across the industry Ts & Cs have been butchered at entry level, often to pay for maintaining or improving the senior guys' conditions. It is hardly surprising therefore to see these schemes allowed without so much of a token bleat from the union.
I read with interest the cabin crew thread about potential strikes at BA. Lots of pilots are on there criticising BASSA reps, saying how they're all senior people looking after their own interests. Sounds VERY familiar.