Yep, most people don't have 4k TV sets so why bother with 4k also?Does it really matter? Most people don't have proper home theater setups and almost all that do stop at your standard 5.1, maybe 7.1, setup. The number of people who have proper height channels and whatnot, so they can actually make use of Atmos, is going to be really small. Atmos is much more useful in real theaters where they have tons of speakers.
Heck, the AppleTV (like almost all streaming devices) can't even bitstream Dolby TrueHD and DTS-MA and that's something folks have wanted for many years. You'd think streaming devices would have caught up by now to what HTPC folks were doing 10 years ago but I guess not.
Let's go back to 1080p content!