Why is the union not saying to ASA if you bring in controllers in there it will be under the certified agreement end of story.
Because it would be illegal under "Workchoices".
Applicants should however be aware that
ASA is desperate for staff and thus would no doubt employ anyone standing their ground under the certified agreement, there are 800+ under that now what's a handful more. ASA may argue that employment under the CA means entry on the lowest wage, which is total BS... Play the card (availability of your labour) and get onto the CA it's the only way to go.