To my knowledge, X hasn't had a recent history of not blocking posts/accounts that actively incite violence.

What's weird to me is that the Brazilian court would prevent them from sharing (or even telling them why) the posts should be blocked, which accounts should be blocked, etc...

If you go to subreddits like r/Brasil you'll see people actively cheering the government's decision. These people want to be censored and have a massive hate boner for billionaires.

Seriously, go take a read at the subreddit. Even if you disagree with me on the judge's decisions for some of the accounts, you'll be shocked at how little nuance there is in the Brazillian community (who should be aware of how thin the line they're walking on is).