I have to say Wow at the photo. I know a still doesn't show the whole story but:
On the NZ side only: There are 2 clear angles. LH, #4 and #8 at one angle, and the rest "straight". The scrum looks split.
LH - where is he, kissing the Aussie Hooker? What an angle. And his bind is to the Aussie Flankers arm - so he must have changed his bind after going in at the angle.
Hooker - from this photo - appears straight
TH - Not a long bind, arm is pulling on and possibly down. But generally okay
#4 - split from his fellow 2nd row. Followed his LH round. Not driving straight.
#5 - is driving on his hooker, not his prop. Indication of walking round, or looking to drive the scrum round ?
#20 - as bound as you would expect a SH to be in the scrum. Certainly not in a position to push.
#8 - Feet suggest he is walking round. Probably stay with his #4. Not in a position to add any weight to the FR.
#7 - enough said. His bind makes #20's appear to be full arm!
So you have 1 axis of LH, #4 and #8 and a 2nd axis of Hooker, TH, #5. Both flankers are not involved in the scrum to any meaningful push.
By contrast - the Aussies scrum, with the exception of the #7 - all their spines in a straight line. And this line includes the NZ Hooker, TH and #4.
The LH looks like his outside shoulder has dropped (See comment about NZ TH above for 1 possible reason), but his spine still straight.
Gold 8 is in a legal (but bad scrummaging) position - not on his prop, or protecting #20.
#20 is still bound, and reaching for ball.
For me - Richie is offside, but my main concern (and PK) would likely be against Black LH. His angle, his bind, he is causing teh scrum to split etc.
But it is just 1 still photo, and I didn't see the game, so no idea what was really happening!