With regard to reference standards and recessed highs...
Sound reproduction, being such a subjective thing, in the appropriate context, has no *right* or *wrong*.
We all have "different" standards of reference fixed in our heads. In a review context, it is more important than cataloging all of the gear in your reproduction chain. Many who have commented on the sound of these phones have mentioned reality as being their primary point of reference, then perhaps refer to another can or two as a secondary reference point, never forgetting their ultimate and primary reference.
My personal reference point is reality. The un-amplified human voice, and acoustic instruments. Strings, woodwinds, brass, percussion, etc.
As a recordist and audio engineer, my obsession has always been to "make it real." When I read others mention the same reference point, reality, I pay attention to what they have to say, because chances are, as we desire the same ultimate outcome in our sound systems, our likes and dislikes will converge, at least to a point.
Many times over the years, my initial impressions of a piece of gear my be swayed off point temporarily, by some characteristic of the gear that "calls attention to itself." Bright sparkly highs, for example, or punchy bass.
After more extended listening, it becomes evident that the elements that caught my initial attention, were actually artifacts of the gear itself, and not an accurate representation of what the program material was calling for. Such artifacts, while fun at times, eventually wear themselves out for me. When relying on the gear to enable me to do a better job of fulfilling my obsession, this is critical.
I started out saying that there are no *rights* or *wrongs* in this business of sound, so if reality doesn't float your boat, that's ok, because ultimately, it's about what you like to listen to and not what others think. The LCD-2's will float the boat for many, but not all. It depends upon where your reference point is, and what your goals are.