Data Point:

Booked and Confirmed Via Expedia
Chase Card shoews charge pending
Can access full reservation on ANZ with Confirmation number

contacted Twitter

“Good day! Is it true that you will be honoring all flights that are ticketed and confirmed for the Chicago to Sydney sale from a few days ago? My PNR is xxxxx I’m wondering if it’s confirmed and paid for as I can access it online

-Kia ora, DENQR you sure are! Congrats on the epic deal! We look forward to having you on board in a couple months 🙌🎉 ^LD
”

looks like those of us that can access it on ANZ and bought through an OTA are golden