No platform has banned discussion of the story or the reasons for deplatforming it, so that's a moot point. The story is freely available on the internet and anyone who wishes can go read it right now.

They did the right thing in this specific case, seems a little alarmist to launch right into slippery slope prognostications about deplatforming. We're on the slippery slope right now when it comes to electioneering disinformation.