If you would take a slight stroll from your worldview to the "Biblical worldview" you learn about the theology of inspiration. See, Christians (most traditions) believe that God did not write the Bible. It is the common belief that God inspired (or, more literally, God-breathed) the words through the guidance of his spirit through his followers. So, if you can put on that perspective, it would make sense why it is so embedded and entangled into the dozens of authors' cultural norms and approaches. It also would explain why it doesn't put other books to shame; they are all written by people!

Since the theology of the authorship of the Bible specifically posits that it was written by people, then that would also explain why it does not address things that the writers did not know.

Lastly, many of the writings of the Christian Bible (somewhat similarly for the Jewish Bible) were written for a particular occasion (this is even more true in the New Testament epistles and gospels). Thus, the message of those writings needed to have a purpose and the implied audience (as opposed to the empirical audience [see implied/empirical authorship/audience theory]) is the intended audience for the author. All this to say, that is why it's challenging to find truths that we can agree on when reading an ancient text, for ancient cultures, by ancient authors, and find application in a 21st-century world. It's not impossible, but that is the challenge of exegesis.