It's Steve Huff. He must embellish as always.
But you can have a system with pretty controlled dispersion patterns for both horizontal and vertical planes, they're pair matched as speakers within ±0.5dB, you have the room where masking is not an issue because of recurring reflections, echoes and ringing (basically you have a treated room using physics and listening and not just vibes) and the finally but the most important of them all, does the song in question have that psychoacoustic phenomenon baked in? Cos you're not getting a sprawling stage with a narrow mix or a mono mix no matter the amount of subjective blabber one can say
And I've achieved all in my space so I have a very unchanging presentation over a large space but not walk in stage. That's hyperbole unless you're running line arrays in your space akin to a music festival