If you're outraged that "Facebook did this in the middle of a pandemic", why not be at least as outraged at the government for trying to pass such a law "in the middle of a pandemic"?
Australia: We're going to draft a law that requires Facebook to do X or Y.
Facebook: If those are the options. we're going to do Y.
Australia: You're bluffing, you'd never dare to do Y. We're going to pass that law soon, and we're sure you'll do X instead.
Facebook: Ok, we'll start doing Y right now.
Australia: Outrageous! How dare you try to strongarm a democracy by doing Y.