My Jet Black backing (and the front glass on this one as well as my previous 6 and 6s) does have "microabrasions" as in "scratches" that can only be seen under direct sunlight or dark dull yellow lights (like my bedroom). However they don't bother me as I don't go looking for them or obsess over my phone like I used to back in the day.
I haven't had an actual, plainly visible scratch since my 4/4s days from actual drops damaging the screen. I don't use screen protectors and only use cases on certain occasions.
With that said, back then, damage to the body of the phone bothered me a lot, such as dings on the 4's antenna bands or to the chamfered edges of the 5. I don't think they would now because I actually look forward to the "Millennium Falcon" look these days. But if I had an actual plainly visible and damaging scratch (especially one I could feel) on my 7 Plus, I know that would bother me, even now.