I guess I was a bit cranky. Sorry. The problem is that you’re using Wikipedia to address technical lingo in biblical studies, so it becomes a semantic problem. The phrase “historical narrative” has a narrow, specific meaning in my world. In this sense, “narrative” is limited to prose (allowing poetry to arise from time to time, but not be the dominant form/genre). In fact, this is exactly the argument YECs try to make with Genesis 1! They argue, since the text is prose and not poetry, we should read it as straightforward historical narrative. (From your angle, your fellow YECs must be wasting their time.)
Now, I agree that historical thinking can come through poetry, such as “historical psalms” (e.g., Psalms 78, 105, 106, 107, 114). The historical bent is obvious and can be matched by info in historical narratives. But the book of Job doesn’t have the same details, so its historical nature would need to be assessed by some other means. I’m not sure what evidence would suffice, however, since neither its genre nor details cause me to think in terms of historical precision.