That's funny how Dolby Atmos is in all caps. It's a protocol and that's it. Dolby squeezed out existing tech with a new protocol because marketing. There is nothing about this that couldn't already be done. If it couldn't already be done, not many people are going to hear the differences anyway.
However, if you are going to watch the movie in your professional studio or private theater, because you just just trashed all your perfectly good equipment just to have the Atmos logo, you're set.