I don't think there is any conspiracy here. The tone of the press release uses words like " evidence" so I am guessing that their legal counsel has been putting in overtime to get them grounded before the Christmas break rather than go away knowing that the risk is there.
The only up-side to this is that flying demand in the Torres Straits won't disappear because one company gets shut down. Some operator will benefit. However to do that they will need staff, so pilots familiar with the area will probably just have to wear a different uniform in the new year.