Your reference doesn't seem to support an actual prophecy involving Herod. Your original post strongly implied that texts mentioning Herod have been carbon dated to 200 B.C. I haven't seen any evidence for this.
The many prophesies concerning the Messiah don't specify the Name He was appointed when He was enfleshed, the date or address, His parents' names and so on. If they did, everyone would have known Him. The prophesies instead gave clues to all these things. God always hides Truth in plain sight.
Likewise are prophesies concerning other characters, nations and events.
For instance, in the following passage - Alexander the Great is not named, but the vast majority of scholars understand of whom Daniel is speaking:
Surely he hath borne our griefs, and carried our sorrows: yet we did esteem him stricken, smitten of God, and afflicted. But he [was] wounded for our transgressions, [he was] bruised for our iniquities: the chastisement of our peace [was] upon him; and with his stripes we are healed. All we like sheep have gone astray; we have turned every one to his own way; and the LORD hath laid on him the iniquity of us all.
He was oppressed, and he was afflicted, yet he opened not his mouth: he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he openeth not his mouth. He was taken from prison and from judgment: and who shall declare his generation? for he was cut off out of the land of the living: for the transgression of my people was he stricken. And he made his grave with the wicked, and with the rich in his death; because he had done no violence, neither [was any] deceit in his mouth.
Yet it pleased the LORD to bruise him; he hath put [him] to grief: when thou shalt make his soul an offering for sin, he shall see [his] seed, he shall prolong [his] days, and the pleasure of the LORD shall prosper in his hand. He shall see of the travail of his soul, [and] shall be satisfied: by his knowledge shall my righteous servant justify many; for he shall bear their iniquities. Therefore will I divide him [a portion] with the great, and he shall divide the spoil with the strong; because he hath poured out his soul unto death: and he was numbered with the transgressors; and he bare the sin of many, and made intercession for the transgressors.
Likewise, even though Herod is not named in Enoch - most scholars understood him to be the character and his the time being spoken of in Enoch. And for that reason, they presumed Enoch was written during his rule or shortly thereafter. But that was before the discovery of the Dead Sea Scrolls.