Trans Pacific is irrelevant since AA does not apply any carrier surcharges on flights to Australia - as such, there is no surcharge for Qantas to charge

That AA does not apply surcharges when it is issuing awards itself is also irrelevant since that is an AA policy to not apply surcharges ; Qantas does however apply surcharges

Qantas applies surcharges on its flights to its members wheareas when redeeming an AA award on QF, no surcharge is applied

I cannot see anything to suggest that there is an error , other than the amount being the economy amount rather than the business class amount