Hello stehno,
There is an inside story to my response. It references reviewers who might not have hearing above 12k. And 12k was probably a compliment. There is quite a difference between this reviewer vs someone who spent decades studying and designing speakers. So yes.... I still want to LMAO
Many of us in this industry do things to protect our hearing as I'm sure Victor did

Humor is good. Perhaps "well-trained hearing" might be more appropriate than "well-trained ears". Not that the graph above has anything to do with the OP, it's probably still worth sharing.