Amazon is directly selling these not acting as a third party. They are the counterfeiters in this case totally different than buying something from someone on ebay and ebay facilitating the deal.
I'll be extremely surprised if that is the case. I'm going to wait for the official response before passing judgement. Amazon can easily afford a $150,000 fine for copyright infringement, but the damage to their reputation would be colossal.
That was absolutely the case with Linux Command Line and it appears to be the case here as well. I say appears because I have yet to receive the product but the manufacturing looks exactly the same as the last counterfeit. The same traits.