+1 I think you put your finger on it. I looked at this for a while and kept thinking… but…. but.
Most good high fi companies try to make their products sound like the real thing. I suspect those that use simple electronic measurement fail miserably. It’s great if you can parrot a sine wave… but real music is all frequencies and amplitudes being simultaneously varied.
All the great designers use engineering principles as a starting place, then listen. Ruler flat speakers sound terrible. I have heard this from speaker designers and reviewers. I don’t look at many specs. I read about or listen myself.
Different engineers approach getting to the best most natural sound from different directions… different designs, technology, materials to arrive at their best… and they arrive in slightly different places. Hence, you get different flavors.