I mean if you did so much as to read Stallman's own statement linked here you'd see:

False accusations -- real or imaginary, against me or against others -- especially anger me. I knew Minsky only distantly, but seeing him unjustly accused made me spring to his defense. I would have done it for anyone. Police brutality makes me angry, but when the cops lie about their victims afterwards, that false accusation is the ultimate outrage for me. I condemn racism and sexism, including their systemic forms, so when people say I don't, that hurts too.

It was right for me to talk about the injustice to Minsky, but it was tone-deaf that I didn't acknowledge as context the injustice that Epstein did to women or the pain that caused.

Emphasis mine. Minsky was the MIT pedo professor named by an Epstein victim. Here, he's not even acknowledging that Minsky was a pedo. Stallman is saying that he is vindicated in his stance of... checks notes ... shitting on an Epstein victim.

edit: it's really a garbage move to condemn Epstein, condemn sexism, and then claim the high ground to then shit on a child sexual violence victim.