I've experimented with wide splits in the past - omins, cards, and hypers. I found that really wide splits worked quite well at spreading the music image out, especially when you were somewhat far back from the PA stacks. What I didn't like was the crowd noise had almost ZERO center image - it was two balls of crowd coming directly out of the speakers. This killed the image for me, as I like to submerge myself in the moment and feel like i'm in the venue. I lose the magic when I can easily pinpoint the location of the playback speakers. I'd rather have a narrower image of the music if I can come closer to reproducing a holographic image of the whole experience in my head - venue, crowd and all.
I didn't listen to this recording, so I'm just offering up some of my nonsense in general terms.