You're confusing censorship with moderation.

Moderation is when you block information from me, because I don't want to see that information.

Censorship is when you block information from me, because you don't want me to see that information.

Cloudflare is the former. Or at least, that's what they want to do. Or say that they want to do. If you let someone or something do moderation on your behalf, there's always a good deal of trust involved, that they're not manipulating you by also blocking information you would have wanted to see. Moderation is not a trivial matter. But it's also not censorship.