Something is really wrong with the Australian batsmen nowadays. And I am noticing this for the last 6 months or so, across all the formats. Jake Fraser McGurk became a gigantic flop, and the much talked Travis Head is not scoring runs nowadays. Mitchell Marsh is the only one with some sort of consistency, and he made 88 during the last match as well. Why Marnus Labuschagne and Cameroon Green are even included in the squad? Labuschagne is in poor form for quite long time. In case of Green, he is not even bowling nowadays.
In some cases, we have seen the Australian team perform poorly in batting, for example, in the previous tour of Sri Lanka, they were all out for just 107 runs against Sri Lanka. Apart from that, in the semi-final against India in the Champions Trophy, if they could have done a little better in batting, they could have won.
Looking at all this, it seems that their batting performance is currently deteriorating, but I will say here that in the case of all teams, sometimes good performance continues, here we also see a drop in performance sometimes.
And this is probably what is happening with the Australian team right now, I would say, they are facing this in the ODI format.