AC,
If you're looking at the image of the machine thrashing itself to pieces, there is a better one which only appears on the Herald Sun iPad where the heel of the right skid is still on the ground. You can also see the matting that the machine was on, and could have created a snagging point on the starboard skid?
The eye witness on the 3AW Sunday morning show at about 11:55 was quite specific about the LR being one skid off the ground/one still on the ground when it suddenly turned over. She wasn't by any means an aviation person, just someone waiting to pick up a relative arriving by helicopter.
3AW News link
On air interview
Sounds like DR to me.