I think the problem is you (maybe ASR generally?....shots fired, BTW ) are at risk of making a god out of the source material, when the source material is itself a gross distortion of live sound. If you look at points 1 & 2 from my OP, they are objective facts, not my preference. Microphones are unnaturally placed and receiving signals in a way different from our ears, and studios are 9 times out of 10, much more soundproofed than a home living room, so what sounds right in a studio may not in a typical home. These are just two distortions I can bring to mind, likely there are others.My own conclusion after investigating this with my HYBRID dsp DIY loudspeaker and Genelec 8340 is that if the loudspeaker has good directivity, a flat frequency response are gonna be prefered , at least by me and some friends . Even in a stereo setup.
TL;DR If a Stradivarius or Guaneri sounded the way it is reproduced by anechoically flat speakers, then you'd have people running from the concert hall. This may be no fault of the speakers themselves, but...(and also in response to this post by abdo123)
we have to deal with things as they are, not as they would be in a perfect world.It's just that these issues should be sorted out in the production stage, you can't expect the end user to play DJ in their free time.