For the non QF partners in OW:
Given AA's hub in DFW, it was relatively easy to arrange flights just over 1200 miles (the old mileage "boundary"). So in effect (in the F cabin) northeast USA (DFW) LAX has gone from 240 QF SC to 180.
Still a price effective way to earn SC. Just not as useful as previously. SE Asia still has a few just over 1500 mile routes.
Happy wandering
Fred