To be exact, the new line under the prohibited products list reads: "Any USB-C (or USB Type-C) cable or adapter product that is not compliant with standard specifications issued by 'USB Implementers Forum Inc.'" It's still very much possible for listings that sell offbrand (or even legit but faulty) cables to go through, though, so you shouldn't stop reading product reviews because of this new rule. And in case you ever find yourself the recipient of a defective adapter, don't forget that you can report the product to Amazon and get it kicked off the marketplace.