"UA isn't good at getting this"

The reason?

As much as AN denies it, they've lost a lot of corporate market share. AN can't offer an extensive international network that QF can, and the seamless connections that QF can offer. Sure, Star has made things easier, but it's just easier to just deal with one airline I suspect and QF's domestic network seems better integrated. So, feeder traffic mostly goes to QF and UA doesn't get much.

Regards,

Clement