it was definitely a big chance blown by Karori.
Their coach coming out and saying they could have played defensively but chose not to are interesting.
I thought early in the second half they quite clearly had made a decision to play conservatively, keep the ball, and maintain a defensive shape. At a few points while Karori had possession their winger was yelled at to tuck into the middle of the park rather than stay out wide "just in case they turned the ball over". This seemed to cause them to play a lot more nervously than they did in the first half and the back pass was always the first option, rather than attempting to go forward. It seemed dangerous at the time, and proved to be so.