This is a pedantic discussion of aspects of sound reproduction that is almost totally irrelevant to how "lifelike" a DAC or system sounds. The ASR "BS" and "measurements" bear almost no relationship to how "lifelike" and "real" a DAC or system sounds, or how "musical" it sounds - there are many more aspects of the sound produced that are not subject to the "metrics."
It is far, far more meaningful to focus on how a DAC and system sounds to the specific listener, and on the system matching / synergies and how "lifelike" it sounds. In fact, the harmonics and distortion a DAC or system produces often contributes to the how "lifelike" and musical the sound is (e.g. as with tube components and systems, or ladder DAC's, etc.).
Move on to those other threads that focus on those aspects and forget the ASR "BS" and measurements - they are irrelevant!