It looks like jobs for the boys. Why stop something at the border that you can then get in the terminal building by download ten minutes later? Sounds dumb-ass to me.
Indonesia had the right idea when it sacked its customs and excise department almost in total. They outsourced it to a Swiss company and mysteriously the flow of goods and people through the borders increased and customs revenues increased. I think the same would happen in Oz, but the unions will insist on control of the borders.
Pity, but there it is.