So people buy based on the review and then they find out the vendor shipped a clone, so then they give a bad review but it's not for the original listing.
Amazon made a huge mess with that, they should never allow third parties to sell on the original listing.
I suppose there is a Ship of Theseus problem when trying to detect tricks like that automatically - surely sellers should be able to reword description, update product image, and change the product name slightly, but where do you draw the line and how do you handle that? Heh.
Until they weren't. We bought one that was a substantial step down (screen resolution in particular, which was exactly why I'd picked it).. Got a refund, but Amazon simply didn't seem to care that the reviews had no relevance to the current model, which was a let down (though a lesson to read the reviews closely and pay attention to their age...)