After reading all 137 pages, here's my take - while I'm sad to see the overhaul, BA (or Oneworld) fares were not the cheapest unless I count exEU TP runs on my own dime. For corp biz travel to the US we usually went with United as their fare was 2x cheaper as 1world, irrespective of booking early or late. This coupled with good PQP runs means that 4 UA sectors are easily achievable