I thought that was odd too
I don't Expect them to Charge/Discharge Test every Battery that they sell. But just like you Looked down and in about 30ns realized Something was wrong with that 1 Battery, so should have the Person who Packed your Order.
But Hey... All's Well that Ends Well.
You are getting a Free Replacement. And got a Chance to Read some Internet Battery Drama. So I guess you could Call It a Win-Win.