But it does illustrate how good the ear is, based on how it functions. Of course, each brain and each ear is different, so we get into these arguments about who can hear what. A situation where hearing is as varied as intelligence is. Lacking ears vs capable ears, or however one wants to put it. A sliding scale not unlike an IQ chart.
It has been shown that younger ears have better timing discrimination and it is pretty consistent. It has been shown that trained ears, and younger trained ears even better, are best at picking out anomalies.
Show me where "audiophiles" are any better than anyone else at picking out anomalies? I can show you something where they could not even pick out huge distortion, but it was readily evident to engineers with proper listening test.
Many musicians do possess better ability to identify tones accurately, but that does not give them super human hearing.