Ok, thanks for your help everyone. It seems a policy change is the reason then, at least I got to take advantage when I could!
I had been saving up to do an A class trip at some point on the 787-9, but I am now more keen to spend that money on the club suite now. Just waiting for the a350 to be deployed somewhere 11+ hours away!
My next trip will likely be to Sydney on BA15 in economy though, which I am excited about.