What is it about a local context of a large system + listening space that makes you deduce the observations made here translates into a general characteristic of other, similarly-ish sized systems - the astronomical price of +$1M? - does that make it a representative for all larger sized speaker setups? If anything it goes to show price in itself doesn’t tell you much about the potential at hand (as you have indicated yourself), also not knowing about the hardware specifics, nor the overall implementation acoustically or otherwise.
Why the secrecy - what’s so important to keep the lid on exposing the speakers at play here? It’s just your opinion - calling out über-expensive speakers + gear for sounding less than ideal shouldn’t be a more precarious matter than saying the same of less expensive speakers. I take it there’ll be no red dot placed on your forehead for spilling the beans, as they say.
While the speakers I had the pleasure of hearing definitely seemed to not portray what I felt were the same level of specific detail and intimacy that other smaller systems I have heard can; I do agree that a generalization cannot be made. I do not believe I was trying to say that ALL large speakers fall down in this way, although most that i have heard certainly do. What would be point of disclosing the speaker in question, besides to feed your curiosity? It is a model that has- and is receiving the highest in hype and praise (as it should for its asking price!) To many on this forum, I suspect they would consider it to be SOTA, which just goes to show the variety in tastes.
As to what I hear live, I am an ex-pro studio musician, so i have had some exposure to the ’live’ unamplified sound... mostly fairly close up, although also many times in large halls. This is where I come from as a 'frame of reference'. What is your 'frame of reference'?