Chess, it is very true that more drivers leads to more realistic vocals and instruments. However, I've found more drivers makes for more difficult acoustic disappearance. The active LFR1100s are the exception with proper spacing and listening distance. Maybe the passive LFRs too but I really don't know.
We aren't talking about the same thing here. You are trying to compare your systems to what i'm talking about and they aren't even remotely equivalent.
Literally, picture a room where every square inch is covered by a tiny speaker driver so maybe 10,000 drivers, floor, ceiling, walls, everything! You cannot compare how the sound from each one of those drivers in that room is somehow related to your 7.2? home system, or even an Atmos system of 11.4.4 and how you believe it sounds seamless or disappears in room. I'm not saying that a 11 driver speaker somehow sounds more surround or natural than 9 or 7 or 5. I am talking about a very exponentially larger concept.
A more equivalent comparison would be to ask, what sounds more like a surround realistic sound? A two speaker stereo setup? Or a 11.4.4 Atmos setup?
What sounds more surround than an Atmos setup?
Maybe a 10,000 driver filled room...
I once read about an experimental room setup with this concept in mind and it makes sense. Our ears hear reflections from everywhere. Even a 11.4.4 setup isn't "everywhere' within a room. It doesn't generate sound from every source location but rather creates sound and is reflected off of angles. The mere point of adding more speakers in Atmos is to add more potential point source locations and thus improve the surround experience. Take that to the next step like they have been doing for the last 20 years. First 4.1 then 5.1 then 7.1, 7.2, 9.1, 9.2, 11.2.....where will we be in 20 more years?
10,000.100.200?
