For me, Crinacle Zero:2 absolutely chokes when it tries to reproduce complex music like this:
It sounds muddy, congested, compressed...
In the MP145 it is delightful to hear the brilliant arrangement of this song.
All my IEMs with better soundstage are made of metal and don't have balanced armatures nor microplanars, they are just planars or have one or more dynamic drivers. I wonder if what we perceive as soundstage is some kind of reflection of the drivers on the metal shells and that can't be replicated by resin nor by BAs and MPs enclosed in their tiny boxes that end in plastic tubes.