> why hold a specific set of writings to a different standard than other books from the same area and timeframe?

I don't? I know more about the bible than other writings at the time just because of upbringing/curiosity but I don't particularly hold it in high regard.

> all texts hold a non-zero evidential value regardless to how people treat those texts outside of academic processes. you don´t take them at face value of course but neither other texts.

I agree. How strong the evidence for a writing will is will be based on corroborating evidence and other writings.