Ah, don't pile on and insult the well-meaning concerned original poster!
You don't have to have “crippling OCD” to notice such things — and be concerned about whether you might have gotten a “lemon“ or a somewhat off phone — somewhat worrisome, especially after spending huge amounts of money on it.
I could see many people noticing that on their cameras and wondering if it was going to affect the way the room or people were lit up and even produce uneven illumination in the photo itself.
It does look slightly askew. Yet, if the photos come out well — and the flash orientation looks similar on other iPhones then, as you'll mentioned, it's not an issue!