Having lived in that time, the writers of the OT or Tanakh would've had a basic knowledge of their geography and wars. In contrast, we don't have any reason to think they would've talked to angels or witnessed divine intervention.
Go ahead and ask the janitor where the men's room is, but don't ask him about thermodynamics.
Go ahead and ask the janitor where the men's room is, but don't ask him about thermodynamics.