hindsight is great.

the OP can't rebook his flights as they have already been taken.

the OP is complaining that he couldn't interline on the day.

perhaps there could have been an exercise of discretion by the check-in agent with 'Mr Gaia - the rules have changed, in fu\ture 2 separate tickets outside oneworld = no interline... and while today we will accommodate you in recognition of your status with us... we won't do this favour foor you again!'

that would have solved problem on the spot and kept 60k plus a year pax with QF.