I do think the Ferns were a bit overhyped by the occasion at the start and it took some concentrated go-forward by the forwards to settle them down. But that took 30 minutes.
It’s pretty obvious they want to play a high tempo game and the Aussie team were already tiring more at the 30 minute mark (admittedly 17 points ahead) than the Kiwis and then being down to 13 players for 10 minutes pretty much emptied the tank. Whether the high tempo game will work against England or France, or whether they’ll get monstered off the park is yet to be revealed.