That doesn’t change the fact that he didn’t fulfill the prophecy.
There were two comings of the Messiah prophesied in the Old Testament. Many of the prophesies were fulfilled by Jesus Christ in the First Coming, the rest will be fulfilled in His Second Coming. Here they are:
Zechariah 9:9
Rejoice greatly, O Daughter of Zion! Shout, Daughter of Jerusalem! See, your king
comes to you, righteous and having salvation, gentle and riding on a donkey, on a colt, the foal of a donkey.
Daniel 7:13
In my vision at night I looked, and there before me was one like a son of man,
coming with the clouds of heaven.
Here is a Jewish interpretation:
“R. [Rabbi] Alexandri said: R. Joshua opposed two verses: it is written, And behold, one like the son of man came with the clouds of heaven, whilst [elsewhere] it is written, lowly, and riding upon an [donkey]! — if they are meritorious, with the clouds of heaven; if not, lowly and riding upon an [donkey].” – Sanhedrin 98a (Scriptures referenced are Daniel 7:13 and Zechariah 9:9.)
Of course, there is no “if” in either prophecy. They will both be fulfilled - one was in 33AD, the other will be soon!
Hosea 6:2
He will revive us after two
days; He will raise us up on the third
day, That we may live before Him.
2 Peter 3:3-8
First of all, you must understand that in the last days scoffers will come, scoffing and following their own evil desires. They will say, “Where is this ‘coming’ he promised?”… But do not forget this one thing, dear friends: With the Lord a
day is like a thousand years…
He who has ears to hear, let him hear.