I'm not saying that it should be a priority to get anyone specifically from specific areas there. But it'd be at least fair to have LCA accessible to at least a fair number of Aussies.
No, the primary task is to make sure the conference continues the tradition of l.c.a as a great Linux technical conference. You can't have a conference without any people, but getting you personally, or Perth people, or Brisbane people, or Sydney people in particular just isn't a major priority. If it were, we'd never have left Sydney and Melbourne.