FLybeeeee I think you haven't expressed yourself very well, the AIB report doesn't BLAME anyone for the accident it merely points out that the primary responsibility for avoiding the collision lies with the Captain of the 767. The AIB quite rightly points out that even when following anATC clearance collision avoidance is still the crews ultimate responsibility, this doesn't only apply on the ground but is also applicable in the air.
I think it is a common international convention that AIB's do not apportion blame, they report facts. If their is any institution that apportions blame then it would be a court of law.
The AIB made three recomendations, non of them blamed the capt or crew of the 767.