You don't own "your" content on Twitter, Twitter does. And as such, they have certain rules about the kind of content they want to own (that you donate to them).
This tweet violates those rules. The reporting of this tweet helps Twitter enforce it's rules on the content that it owns. "censorship" is irrelevant here, since the content is Twitter's private property and they can do what they want with it, including remove it.
If I choose to post Nostr notes to my own personal relay and you choose not to look at them nor re-surface them to people of your choice, you aren't "censoring" me. You're making a choice about the kind of content you want to see and associate with yourself and your connections. Infact, you _cannot_ censor my personal relay, because it's mine and I control what happens with it.
If that makes you uncomfortable, I'm sorry. But trying to point out a contradiction in principles among Nostr users is a dead end because you have no argument.