Does the interpretation on which Qudamah ibn Maz'un relied in drinking wine prevent him from being declared a disbeliever?

The scholars among the Companions unanimously agreed not to declare Qudamah ibn Maz'un, may Allah be pleased with him, an infidel. Similarly, the imams of Islam did not disagree regarding the non-declaration of apostasy for the one who interprets (a religious text) incorrectly, provided that the proof has not been established against him. Sheikh al-Islam Ibn Taymiyyah mentioned that declaring a specific person an infidel and permitting his killing is contingent upon the prophetic proof reaching him. No one has the right to declare any Muslim an infidel, even if he errs or makes a mistake, until the proof is established against him. However, whoever deems permissible something that has been unanimously agreed upon as forbidden, and its ruling has become manifest among Muslims, and the ambiguity regarding it has been removed, then he becomes an infidel.