The actual term used is "likely to prevail".

Injunctions are not handed out willy-nilly, and the actual wording in the injunction should give you pause:

"The officials have engaged in a broad pressure campaign designed to coerce social-media companies into suppressing speakers, viewpoints, and content disfavored by the government"

Nobody said anything about "proof that the defendant will win". I said said that several judges have found evidence of unconstitutional pressure being applied. Please do not misrepresent a plain statement of fact.