Again, I don't have enough evidence to pin this all on Amazon. The App was rumored to be introduced with the ATV 4K, and pulled at the last minute. I also find it more than coincidental that the one major thing that Apple got backlash over was the lack of auto format switching, which should have been addressed at launch, was issued as a beta barely a month later -- that's a planned feature that got yanked at the last minute due to a bug, not a requested user update only conceived after the release. Then there's not releasing the ATV 3rd Gen App before the 4K model, which would have cut into Apple's sales, when they could have. So neither party is likely entirely innocent either.
It wasn't promised at launch, but it was promised "later this year". It's a little disingenuous to make that promise in early September and then wait until mid-December to deliver on it. Regardless, anybody who bought an ATV 4K based on Apple's promises, DID contribute to the bottom line and DID boost Apple's record profits regardless of being a "blip" or no. Apple could have been honest about the lack of features, and let consumers make the choice to buy at a later date. But they knew what they were doing. They're a business after all. And that's likely why we had to wait for Apple to get the 11.2 update pushed out before Amazon app could be released, making them the more likely culprit here than Amazon, which far too many on these forums are eager to pin the blame entirely on, without any facts supporting it, or even looking at it from all sides, and all the possibilities.
Name an Apple promise upon which they didn't deliver? I hold Apple to a higher standard, which is why I pay extra to own Apple products. They've set the level of their bar and have to deal with the consequences of the expectations they've instilled in their customers.