I'm not a BA (or oneWorld) flyer and so have no affect by these changes but have been reading with interest. As has been written about BA wants to focus on high-spending business and first class passengers only, and not interested about the economy class passengers. So do BA think they want to be a business class airline only? History has shown that those fold quickly:
https://en.wikipedia.org/wiki/Business_class_airline. Or does BA still want the self-loading cargo down the back, but that those folks have zero status/any perks?