4K will be generally "stupid", etc right up until Apple rolls out 4K. Then it will be gushing greatness, "how did we ever live without this?", "shut up and take my money", etc. Same story, over and over. Once it's here, we can repeat it all again with 8K resolution right on it's heels.
Please allow that many of us are not making this argument at all. We are arguing that tech doesn't automatically become important or necessary just because it exists. Whether Apple supports or promotes any given standard isn't the issue. In fact I'd argue that if Apple actually is pinning its TV hopes on 4K, that the potential number of customers for these products will be very limited. Most people will scratch their heads and wonder why they should even be interested in spending so much more for a TV that isn't going to give them a better viewing experience.