Fake imaging to me is what an MBL speaker offers. I have never seen a live violin player with a 6 foot wide image. Yes, it's "airy" and "spacious" but grossly overaggressive in perceived size. This is one extreme.
The other extreme IME and on my system is pin-point locationality cues that allow the listener to still know exactly how big the venue is, where the singers are up on stage. How high the stage is in relation to the listening position, where the instruments are located and even so much as to where they are changing the notes of a guitar in relation to where they are plucking, while still being able to distinguish where each respective instrument is up on stage.
A perfect example of this would be Al Di Meola, John McLaughlin and Paco de Lucía's, "Friday Night in San Francisco". I can perceive all of the aforementioned on this album with no detectable negative effect on tone and tonal balance. This is the best of the best.
Now with that said, I can put in another album and every aspect changes. I concur with morricab in that it's more the recording instead of the gear. This is conformed (to me) with listening to the same album on different formats with different mastering of the same exact album. All aspects of everything that both you and I have mentioned so far can and most of the time, will be different.....yet the gear never changes.
Tom
You may not have heard a good MBL demo because I would say that imaging and space rendition are strong suits of the speaker (in this case perhaps even if it's not on the recording...in that respect it could be a bit manufactured from the omindirectionality). I have not heard out of proportion performers with MBL (but have with poorly setup Avantgarde Trios). What is not, IMO, is the tonality (I consistently hear a metallic edge with them) and their never ending thirst for watts. The largest ones can do dynamics pretty good (but then they are a huge speaker so they should) if you can put a few kilowatts into them. The smaller ones are dynamically limited, IMO.