Seems like the author got the best non-VIP seat he could too. I wonder how the worst seat (or non-seat, like an isle) in there fares for immersion.
The sound system + sphere geometry is also interesting for similar reasons, you get good sound no matter where you sit. I even brought ear plugs because concerts are always too loud, but didn’t need them in the Sphere show, they seemed to use their ability to achieve uniform coverage to set the volume at loud enoug but non-ear-destroying levels. (The WP article also talks about the sound system.)