Why isn’t more detail always better?

One aspect of "detail" that shows up in some systems to me is an unnatural separation of sounds. For instance, in my quest for new speakers I listened to a few very highly recommended models that made a cymbal sound like separate instruments (being struck and the resulting shimmer) and fingerpicked guitar where some string squeaking was front and center and completely separate from the guitar notes. I settled on speakers that (in my system) gave up a little "detail" but, to my ears, kept a smooth and natural transition of sound from each instrument being connected and continuous.