For an apple to apple comparison, how about last year when Facebook promised to help Germany censor any criticism of their immigration policy under the guise of 'stopping Hate Speech'?
Facebook aren't taking a stance against censorship here. They are taking the same stance they always did: Pro-Facebook.
Hate speech has always been a violation of Facebook's ToS. The "deal" with Germany was simply that Facebook agreed to be better at actually enforcing their own terms.
That article doesn't say anything about Facebook deleting posts of his. And the only thing he's specifically listed as doing, calling specific groups cattle/scum/trash, well, Facebook sure doesn't seem to delete similar language in general. "It's against the rules" does not imply that enforcement is fair if enforcement is highly biased and ignores 99% of cases.
Facebook aren't taking a stance against censorship here. They are taking the same stance they always did: Pro-Facebook.