Immediately after the section where it makes the point about when the books were written. It lists the book of Daniel, just as an easy example, as being written after Alexander’s empire was split. It was written by Daniel during the Babylonian captivity.
Era / Century BCE
Prophetic Books [with other named Prophets]
Pre-Monarchy (13th–11th Cent.) Books of Moses, Joshua, Judges, beginning of 1 Samuel
Early/United Monarchy (10th Cent.) 1 & 2 Samuel, most of 1 Kings [incl. Nathan & Ahijah]
Divided Monarchy (9th Cent.) rest of 1 & 2 Kings [esp. Elijah & Elisha]
End of Northern Kingdom of Israel (8th Cent.) Amos, Hosea, Micah, Isaiah 1-39
End of Southern Kingdom of Judah (7th Cent.) Zephaniah, Nahum, Habakkuk, most of Jeremiah
Babylonian Exile (597/587–520 B.C.) some of Jeremiah, Ezekiel, Isaiah 40-55
Early Post-Exilic Restoration (late 6th - early 5th Cent.) Haggai, Zechariah 1-8; [also Ezra & Nehemiah]
Persian Era (5th–4th Cent.) Isaiah 56-66, Jonah, Zechariah 9-14, Obadiah, Joel, Malachi
Hellenistic Era: Ptolemies (3rd Cent.) Daniel 1-6 (more prophetic)
Hellenistic Era: Seleucids (early 2nd Cent.) Daniel 7-12 (more apocalyptic)
This is a direct contradiction of the testimony of scripture.
Did you, in fact, miss those?