Also I think you are painting an ongoing disagreement in the medical community (do we need to measure all-cause, or just breast cancer related mortality) as set

Also I think you are painting an ongoing disagreement in the medical community (do we need to measure all-cause, or just breast cancer related mortality) as settled. There are good arguments on both sides, but I think that we have a much better shot at turning the breast-cancer specific mortality boost into all-cause mortality boost by continuing to improve treatment, biopsy, screening etc.