The damage is still done then. NYPost knows the article is fake news, and so does Giuliani and the other folks surrounding the article.
But put it there, and by the time your "open discussion" is done, the elections will be over.
In normal circumstances, that doesn't matter. Talk about it, let it fly around the internet and then in a week or so we'll hear the authoritative rebuttal.
However, we are 20 days from the election. People are literally lined up and voting as we speak.
My feelings on this are mixed. It's effectively restoring the "old media" order where random trolls can't steal elections. But it's naturally preventing "the truth" from stealing an election too.