Its shortened to g’day out here. 
But as I understand it the Aer Lingus aircraft was departing, and while he obviously had to follow a SID its not like he had to stay in line for an arrival. There is a lot more scope for vertical separation on departure due to different rates of climb.
I am a former ATC software engineer and reading through forum posts on this incident I did wonder if there is potential for the diffusion of WX radar data in this environment. The ground based radar is only going to show weather which has not been obscured by other weather. The aircraft sees what is directly ahead of it. Part of this may boil down to the controller just not having the same view of the airspace as the crew.
