And men aren't perfect, bias is bound to set in. The word of Allah can be the truth the mistakes can be attributed to the fact the Muhammad was just a man, if you see my point. A man wrote the Qur'an, I mean that's a fact and the book would have been different had another man been chosen as a prophet.
Anyway, Islam grew out of Arabia, hence some imagery and phrases are Arabia centric. That's just a fact like
Did you just say Islam is more understanding than European culture?