I can't completely agree with this. I have heard Wilson Alexandria X-2s and XLFs that definitely reproduce the full dynamic range of a big band or 100-piece orchestra at close range without distracting distortion, and I'm confident that top line products from Magic, Focal Utopia, and others can achieve the same sensation.
In the last 20 or 25 years, it has certainly not been a huge priority of high end to get extremely loud playback at low distortion levels. Producers have been fixated on imaging, pretty female vocals, lots of deep bass, and maybe above all "high definition" or lots of detail, because reviewers and audiophiles fixated on that stuff, especially the detail.
That's what the big bucks should buy you--range, both frequency response and dynamic range. Many speakers can recreate solo acoustic guitar or voice realistically for $2K or less. The air gets rarified when you look for a speaker that presents the same sense of reality for an orchestral/choral reproduction of a Mahler symphony, Holst's "The Planets" or Mendelssohn's "Elijah," or of the Ellington or Basie big bands in full swing from the front row. I've gotten that sensation from the Wilson Alexandrias and I'm sure others here have experienced (or own) this sensation from other fine full-range loudspeakers properly amplified.