Don't worry about strikes WW has said BA will operate all Long hauls and the majority of short haul with full service in the event of another walk out.They have trained sufficient numbers to cover for the arse holes who are intent on destroying the hand that feeds them.
I would never pay at Plane food with access to the BA lounges. Food is perfectly fine only ever had a quick squint at the galleries in T5 as have always had access to the CCR or F lounge while they have been operating.The food in the T5B galleries is exactly the same as the T5 F lounge, good salads, cold cuts, fish pie, mini burgers, mini pies, usually a stew and veggie curry.The staff manning the doors are all pig ignorant and unfortunately a lot of the crew are going that way, a few stars still shine.If you get access to the T5 arrivals lounge be prepared to witness the worst customer facing front desk staff in any service industry in the world,the serving staff are fine