A to your Q in one word, corruption. Even special ordered, specific types aren't always what they're stamped. Say your typical 18/10 used in utensils. Could be cut with a lesser metal. (Keep in mind idk much about the types of steel, it's just an example.) Bonus, in China, they don't care, even if it's poisonous metal. (Now you see why I used that example.) As long as the product is delivered, on time and in full, the company saves face. (Big in asian countries.)
It's only about saving face with Chinese. To everyone else, they delivered and you paid. If you didn't confirm before paying, that's on you.
It’s safer to buy dinnerware and flatware at a thrift store. Fiesta is still made in the US, and some Anchor and Corning products.