It appeared to be packed very well, and the case was in the plastic bag, followed by brass weight, extra plate, and pen. Nothing jumped out at me as "poor packing" when I opened it, quite the contrary. I suppose it's possible the brass weight (albeit wrapped in protective foam) could have possibly been involved in banging around inside the inner edges. I dunno?
The picture I posted was taken right after I unpacked it (No chance to bang it up myself). The blemish is on the left side of the case (nears CAPS LOCK) which you can't see in the picture you posted. If you have a picture pre-packing that shows the inner left rail in good condition, it was likely a result of shipping damage. As far as I can tell the rest of the case looks pretty great aside from that one spot.