After I counted them, you're right, the number of rivets is correct, but compared to the one on eluxury, the stitching is wrong. While these are different colors they are both MM bags.
See how the yellow arrow on the left pic from elux is above the rivets, on the ebay one it is below one rivet.
And they're showing 2 different insides, it seems:
1 pic from ebay, purple inside...
the second pic, same auction showing date code, red inside...
the inside is supposed to match the strap on the outside.
That's just why I don't trust it, I could be wrong, I am no expert by far.
My last observation: if it's brand new, never used, why is the "Lous Vuitton Paris" stamp so rubbed off on the zipper pull.