Violating privacy by publishing personally identifying information. There’s a hefty fine per occurrence, and the plaintiff is alleging that there were over three hundred thousand occurrences.

This information was not published by Facebook - Facebook's data sharing agreement was that this information would be used only for academic purposes and not shared with any third parties. After discovering that Kogan had violated these restrictions Facebook terminated his access to Facebook's API and ultimately terminated this program of giving academic institutions access to Facebook data.

Facebook was responsible for that information, they shared it with someone they shouldn’t have and then tried to cover their butts when the inevitable data breach occurred.

This is Australian privacy law we’re dealing with, not a Facebook EULA.

No, they shared it with university researchers for academic purposes which is what users agreed to. Said researchers turned around and used it for commercial and political purposes.

Sharing the data with Cambridge Analytica (for the purported use) wasn't the problem. Cambridge Analytica lying about what the data was uses for is the problem.

Not true

Rather than simply contradicting can you provide a more accurate summary of the case?

You provided literally nothing and another user did indeed correct you. Axe grinding and little else