I actually see this as a good thing. Occasionally people will publish e-books using content that doesn't belong them, such as a compilation of someone else's articles, etc. This action proves that Amazon is trying to crack down on that sort of thing, which helps protect both customers and other authors.
I also think Amazon chose a decent method to verify the material by not simply pulling the plug on it and giving the authors a chance to respond.
I also think Amazon chose a decent method to verify the material by not simply pulling the plug on it and giving the authors a chance to respond.