Not at all, if Apple were at fault here I'd be happy to join in. The trouble is, they aren't. You don't quite seem to grasp just who is responsible for the delivery of Amazon services on Apple devices. This isn't the same situation that existed with the Apple TV 3, the introduction of the AppStore to the Apple TV changed that dramatically.
Do you think Apple makes all of the apps in the AppStore? They do not, surprisingly enough. I'd have thought the word Amazon in the title of Amazons streaming service would have provided a subtle clue as to who's responsible for the development of an app for Amazon services. Clearly I was wrong and the subtle nature of the information is not as obvious as it should be. So let me help you out here, see if we can't shed some clarity on the matter, it's Amazon.
I completely understand how apps are made. I also understand that Apple took time to work with other app developers ahead of launch so they would have some product which they do not. That is on Apple.