i get your skepticism. But from those of us that have been dedicated to creating a great system to reproduce real music, and to people dedicated to develop systems capable of delivering that sound, an incredible amount of skill can be developed over decades. It is one thing going out and listening to live music in different venues one or twice, occasionally. Then it is very different doing the same hundreds of times over long periods of time.
I have gone to concerts at the Oregon Symphony hundreds of times. They always announce when they are recording for a release. My seats are under the primary microphones. I own a bunch of recordings made there. The acoustics are very predictable and different from my seat as they are above mine. But completely predictable. I have also frequented the Chicago Symphony and many venues, and other cities. You can learn about venues and acoustics. All part of being an audiophile or developing equipment with true passion.