The issue with such an app is not the fact that it is being hosted but rather the fact it was created. Going after amazon will not change the fact that the Sauds think this app is moral. In fact it only distracts from the issue. Amazon is a company and wants profit. Saudi arabia is a sovereign country, which means it is the only entity involved that can truly enforce its morality. That anyone would think to first criticize Amazon is somewhat ridiculous in this context