I can assure you there are plenty. Have a look at the proximity of airfields in the iron triangle. Its not just jets operating to the airfield you're operating into that can be traffic. And to top it all off, you can't talk to them (vhf limitations) until you get into the air. Newman on a Tuesday morning is busier than Cairns. Even the private mine strip's have multiple traffic.
I don't think you can blame the system for this incident.