Looks like TVW had some major issues towards the end of their coverage. They crashed out and tried the ad break trick a couple of times but couldn’t get back and then went on with the next show.
The West Australian is producing a free afternoon edition of the paper today, which looks like it’ll be available at the entrances to Elizabeth Quay Station and Perth Station.
I’d say it’s easier for them to do it from the green screen, rather than firing up the lights and maybe crew required to come from the other studio. Maybe it highlights that if Sydney is going to become a production hub for multiple bulletins, then maybe a small set (regional style) is required as a back-up.