Not sure which part was “not entirely correct”? As I wrote earlier, the at least 50% penalty (more for MH) applies to almost every flight (I am sure someone will find an outlier!) on OW that QF also has a route, or thinks they may.

which includes, Asia, Middle East, Europe (e.g. syd lhr as one flight number), and quite relevant in this context.
AA are the outlier, which makes sense given the depth of alignment. and probably the only airline (along with AY) in OW that QF play nicely with.

it is quite a significant chunk when trying to maximise SCs from EU.