More;
Very GA related and a lot of West Australian and Queensland money is involved.
Some people very miffed with the Airservices debacle and recent CASA internal moves with a certain "legal eagle" being put in charge of regulatory reviews, especially when it is the OLC making the rules.
Byron has had some sort of ultimatum from a large delegation including Airlines, Engineering and GA, which could bite him with a political comeback through the Senate.
No confirmation of original assesment that DS is not involved.