No, the argument is that Amazon is not the only organisation with a rightful interest in the ".book" top level domain and so should not have been granted exclus

No, the argument is that Amazon is not the only organisation with a rightful interest in the ".book" top level domain and so should not have been granted exclusive control over it. I guess the second argument is that the arrogance displayed in saying things like "no, there shouldn't be any commons on the internet" (which is what closing such a generic tld does) is evidence that they have grown beyond what is healthy for society.