I guess some people think open headphones make a more open soundstage and closed ones...well you get my point. And some others feel that a headphone should make a great wide soundstage with a close-mic'd multi-tracked pop recording. If it ain't there to begin with, it should not be there during playback. If it does, it's exaggerated and distorted. A recording of an orchestra in a large venue with minimal miking should sound spacious using any headphone or loudspeaker.
Open phones are more diffuse, hence the auditory "appearance" of space (not actual recording space). A good closed phone, with closely matched drivers and balanced overall response, can offer a better view of player interaction. That is determined by the Audio engineer and HIS level matching (of course). In particular the simple mic'd recordings (again IMO).