One of my takes is that Twitter leadership is completely incompetent. Facebook didn't censor the story completely, Twitter did. Twitter is arguably one of the most valuable (if not the most valuable) platforms for news in the entire world...yet they can barely make any money. This isn't the first time Twitter has massively botched something so simple. It really comes down to a detached CEO, and incompetent leadership.
A client of mine recently asked to divest from Cloudflare because they have the Proud Boys as a customer. As much as Cloudflare has no legal obligation to police the content they host, customers can vote with their feet.
(I don't care what Biden's son does in his free time and it doesn't affect my opinion of Biden much at all).
That's true of most of the other "valuable" news platforms too. Probably because people want entertainment not news ;)
Someone else in this thread argues that Twitter may be the most-important news service going now, and I agree. The fact that the platform itself is specifically engineered to be so antithetical to honest fact and debate really demonstrates our societal values about money versus truth or social cohesion.