I don't expect my new computer have out of the box any more dents and scratches than my new car, refrigerator or any other new gear with metal chassis. However that being said, I've seem similar issues lately with most of my new Apple gear more or less. I think my recent purchases only iPad and Apple Watch was cosmetically like new, my MBP had some marks on the bottom, my iPhone X had several dings on the steel rim where space gray color came off and so on... Buying these things have became from pleasant experience to total nightmare these days.
I did not bother exchange my MBP due to small marks since display was about tolerable and I knew it is a lottery with them, so I did not want to risk getting one with lousy display. However looks like battery is already more or less shot after just under 30 charge cycles, or battery run time numbers are hugely exaggerated...