I'll explain. The RP600M sounds LEAN. It sucks the life out of acoustic guitar for example. Bass guitar also sounds way recessed.I despise this line of thinking - why would it be less important by genre? It mostly just sounds like "oh, that isn't real music, you don't need good speakers for that".
I'm describing from memory why I didn't like using the RP600M for 2 years straight. Heck I was bummed when I listened to my dad's Q Acoustics 2020 speakers. I thought that they ran circles around the Klipsch RP600M.
I probably have the worst taste in music from folk punk, to sad girl garage rock to millenial dad rock, to vaporwave etc... And I listened to nothing but Animal Collective during my college years.