I'm not completely over this incident, but from what I have read, she was AWOL for 2-3 hours at the 'peak' of the bushfire crisis. I'm not sure if it was the 'peak' but certainly an important period according to the tabloids.
From a crisis management perspective (and I've been involved with some) there's absolutely no excuse for not being at your post, or at least available, during this time. If the news reporting is right, then she was literally AWOL. Those people get shot in times of war. And the bushfires were war.
When she's on her death bed, she will be haunted by the decision to leave her post.
No excuses.
She should have gone without the risotto and stuck with the tinned beaf and tort.