As you wrote, you have Obsessive Compulsive Disorder, and you took a lens back to Samy's,and eventually, they agreed it was a defect,and they returned the lens for you.
"(thanks to my O.C.D.) in the glass, inspected it and noticed that there was something EXTREMELY EXTREMELY small (either dust, debris, or a scratch) on the inside of the glass. brought it back to them and they finally noticed it as well. They agreed it was a defect for sure and exchanged it for me. My point is as well as the quality control by nikon may be, mishaps do occur and it has already happened to me once regarding the purchase of this lense and now i'm hesitant as to if this "hazyness" is also another defect."
What happened is,in order to get you to go away, they gave you another lens. As you wrote, "they finally noticed it as well." Yeah, I have handled returned equipment before--and they finally noticed what you saw, but which you are not sure about--was it dust? or a scratch? or was it debris?. If you're such an experienced shooter, surely you could determine if it was dust,debris,or a scratch,right??? Thankfully, your OCD helped you spot this alleged defect. And maybe the out of focus shot you got is also a defect? Oh boy,here we go again--maybe your "lense" has a defect!
Looking at your OOF photograph, I can spot the newbie mistake you made; looking at multiple other photos shot with the SAME lens at the SAME event, I can see that your equipment works fine, but the operator is inexperienced. I used to sell camera gear; customers who buy pro gear but don't know how to use it,and who are concerned with minute bits of dust are every sales guy's nightmare customer.
You are obviously, a novice shooter,and quick to blame your equipment instead of your own inexperience. The lens worked quite splendidly in OTHER photos shot minutes apart. If you're so experienced, WTF are you doing on a forum trying to help diagnose a simple case of bad focusing? Sorry, but the something "hazy" here is your understanding of camera handling and lenswork. Your picture has some OOF areas. You messed up.