Here are the best pictures I could get of it, linked so you can see full size. Like I said, really subtle, but its there and Im guessing is present on just about every new iPad Pro out there. On top and bottom of the Apple logo vertically. At first I thought they were a shadow or something, but they are present regardless of where I am in the house.
https://i.imgur.com/WxAVi7f.jpg
https://i.imgur.com/n3DKi0c.jpg
Definitely noticeable in the first photo. It is a shame given the fact that, as you said, it’s a $1,200 device. It should be perfect.