Where the Scriptures teach that an individual, an event, or an object is typical of something else, we accept it as such.
I copied pasted this line from your link which I believe is from the Watchtower. I wonder then if they still accept this.
"The Nations Shall Know That I Am Jehovah" Book (1971 Edition), Pages 56-59:
"Ezekiel was not raising himself up as a prophet and presuming to speak in the divine name. He was really a prophet sent by the Most High God...Not alone were the inspired words of Ezekiel prophetic, but he himself was a prophetic figure in his action, as is later shown on occasions. (Ezekiel 24:24) Since Ezekiel himself was a 'portent,' or 'sign' (AV), of someone to come, and since he was not a type or prophetic figure of Jesus Christ, whom did the prophet Ezekiel typify in carrying out his divine commission?"