This is probably how the conversation went between John Williams and the recording engineer while discussing this album:
J. Williams: I would like the listeners at home to experience what it's like to be there in the audience in the theater.
Engineer: You mean like fake surround ?
J. Williams: What do you mean by fake ?
Engineer: I mean ambient, versus discrete.
J. Williams: You must be confused -- ambient is more real, discrete is fake (we're talking about live orchestra).
Engineer: But these guys have their 12.4.8 speaker setup, why waste all those speakers ?
J. Williams: We want to use all those speakers to recreate the sound in the theater,
which is better than using two speakers and applying fake digital signal processing / reverb.
Engineer: But where's the fun in that ? They want to get their money's worth, with sounds coming from all over the place.
J. Williams: Then they can watch Star Wars (not sure why I thought about Star Wars, but that's one of the top movies that came to mind).
Engineer: But we're talking about music, not movies.
J. Williams: So they can go ahead and play some Kraftwerk 3D.
Engineer: But you know that there are classical albums with discrete sound, there's even the TACET albums with the "Real Moving Surround Sound".
J. Williams: Look, TACET can do whatever they want with classical music -- the composers are all dead so no one is stopping them.
But these are my own compositions and I'm still alive -- so I get to decide what the listeners get to experience.