How Was The Bombing at The Australian Christian Lobby "Not Politically, Religiously or Ideologically Motivated"?

Yesterday, a car bomb went off at the headquarters of the Australian Christian Lobby in Canberra. Fortunately, no one was in the building at the time of the explosion. The Australian Christian Lobby is a socially conservative group that, among other things, opposes same-sex marriage.


What boggles my mind is how the Australian authorities have already concluded that the actions of the driver "were not politically, religiously or ideologically motivated". Yet in the very next breath they also indicated, “We are not in a position as to speculate as to the motivations.”


If Australian authorities aren't in a position to speculate the driver's motives then how can they conclude the incident wasn't motivated by politics, religion or ideology?


I suppose its possible that the driver didn't have a political, religious or ideological motive in detonating the explosives. But it's hard to believe that someone who was operating a vehicle with explosives inside was out for a leisurely drive, lost control of the vehicle and just happened to ram it into the headquarters of the Australian Christian Lobby.


In the grand scheme of things, I cannot help but think that if the incident had occurred at the headquarters of an Australian LGBT group the police would not be so quick to dismiss political, religious or ideological motivations.