It was decades of stories and complaints from women about his bad behavior, as well as men who have worked closely with him and covered for him during that time. Now the bill has come due, and no one will cover for him because he hasn't learned. The best thing anyone can do for him is to let him face the consequences he brought upon himself.
It's true that that blog post (which was not anonymous, there's a name on it???) is what catalyzed something to actually happen, and you can dispute whether the blog post by itself merited anything. And - largely because these were things that a small group of people were trying to handle internally (did you know that the FSF staff are unionized?) - there didn't seem to be much public discussion beyond that one blog post. The GNU maintainers' mailing list is private, the discussions between FSF board members are private, etc. So, it certainly looked to the casual observer like it was a single blog post. But that wasn't the reality.
