Perhaps you’re right his $700 unit is not set up correctly or insufficient, but the point is it seems the speaker (and headphones he tried) are basically what you might end up with if you don’t have a high budget and do a fair bit of research: the end result is disappointing and would turn people off of the technology.
Feels like, if you can't get a person who understands the tech to buy the equipment and get it running correctly, there's something very wrong with this system. I get that even experienced people can make mistakes (I sure made many in my field), but if that's a specifically researched content for publication... you tend to be careful with those.
I think Dolby's desire to market the Atmos brand is unfortunately beyond what the tech can deliver. Atmos works great for people willing to invest in a high end system, especially for the right content, but it's diminishing returns on entry level systems and headphones.