Your entire comment just speaks about poor practices, not about abuse of outside hours.
There is never going to be a law that restricts wasted productivity or bad decisions.
Most workers in Australia don't even have ways to remote in. The fact that you do have that is probably reason to believe it's part of your role. It isn't quite rocket science to think that someone who controls releases can be on call, the same way someone who works in a hospital can be on call.
Your personal experience sucks but it sounds like part of the role, most of Australia doesn't have issues with this.
There is never going to be a law that restricts wasted productivity or bad decisions.
Most workers in Australia don't even have ways to remote in. The fact that you do have that is probably reason to believe it's part of your role. It isn't quite rocket science to think that someone who controls releases can be on call, the same way someone who works in a hospital can be on call.
Your personal experience sucks but it sounds like part of the role, most of Australia doesn't have issues with this.