Interesting. I’ve heard some imperfectly measuring loudspeakers sound a bit more real to me in some aspects with some content.
We have quite a bit of data as to overall preferences in loudspeaker design over a range of different music.
It would’ve been neat to have plenty of good data where loudspeakers were rated in terms of realism (even more cool if somebody had managed to produce real versus live comparisons that weren’t problematic).
At the end of the day, the purpose of speakers is to be listened to by human beings. So a perfectly objective evaluation of the performance is practically impossible.
Each human being puts different weight on different qualities, has different ideas about which imperfections they will accept, etc. Most people also have a preference with regards to genre(s), despite claiming "I listen to everything". This too affects which qualities are more important, and less important.
That being said, we see a general consensus on many things. We also have some data on what measurements indicate a good speaker. At the same time, a number of the speakers that measure the best (and as such are presented as the best on this forum) does not necessarily evoke that "this sounds real" and "this feels right" experience. At least not to me.
Not a perfect world, and no access to perfect data. So we are not in a position to make a perfectly objective, perfectly logical choice. But that's not what we humans do anyway. And still, a lot of great speakers out there, which is good.