I don’t remember the specifics but I think there was a case where they accidentally amplified his tweets too much and they did reverse that change. He tweeted about it but I think it was a couple months back so it would take a bit to find.

Tabloid sites (Verge, Vice, etc) reported it as making Elon’s tweets appear in everyone’s timeline all based on the same blog article.

not tabloids, not a hoax, did you go on Twitter during that period? I have him blocked and saw his tweets

Yes tabloids, both known for making up stories and sensationalism, all sourced from the same single blog article, easily confirmable looking as false at the view count for Elon’s tweets, explained by engineers as exactly what we saw here (logging output not changing output) and I don’t believe you re: seeing his tweets despite blocking him. Nobody else had that happen.

I saw several people say they were seeing his tweets despite having him blocked during that incident

They're no more tabloids than Tucker Carlsen is a news anchor.