Very simple. The books of the NT and the stories therein were written based on prophecies and "prophecies" in the OT -- at least to some extent. The second item of the prophicies listed in your link is a posterboy example of that. Some of the stories in the NT have Jesus been born in Bethlehem because the OT said so. Similar for the third item listed. Just work something about 30 pieces of silver into the stories somewhere.
A fairly simple, and very plausible explanation which takes care of the bulk of the prophecies offered up in one fell swoop.
This just isn't so.
For example, our first president, George Washington, was born 22 February 1732 in Virginia.
Try writing that he was born in 1730 in West Virginia, and see what happens.
There are facts in the Gospels that no Jew or Gentile would dare write if it wasn't true -- and to even write it when it was true could get them killed.
Yet the Jews wrote about King Herod doing this and that, Pontius Pilate doing this and that, the Sanhedrin doing this and that, and so on and so forth.
Had this stuff not been true, the authors would not have voluntarily gone to their deaths believing a lie they themselves started.
Put another way ... say you wanted to start a rumor that George Washington was born in 1730, instead of 1732.
You get arrested and are ordered to recant.
Unless you have some kind of twisted death-wish, you will recant the lie you started.
You are not going to die for something you know for a fact was a lie.