The flex (MAX) bundle does earn SC's.
https://www.qantasnewsroom.com.au/me...estic-flights/
Status Credit earn on a Plus bundle (10 Status Credits) and Max bundle (20 Status Credits) remains unchanged.
SC's can be earned for revenue fares on ALL JQ NZ Domestic flights booked as solely NZ domestic travel.
"Qantas Points and Status Credits are earned on all eligible fares."
https://www.qantas.com/fflyer/dyn/fl...as-and-jetstar