I think the lyrics of God Part II fit the preacherman persona of MBM far better than Desire's.
I think the lyrics of God are too dark for MM's persona. And while MM let's us know during Desire that he "believes in love", he conveys the impression he believes in himself more.
I'm not even suggesting Desire or Ultraviolet should have been cut. I'm saying God Part II should have opened a five song encore with Desire, Ultraviolet, WOWY and Love Is Blindness following. Or WOWY could have been moved up into the main set.
Given the structure of the set-list, I think one of the two fast paced encores would have needed to be cut to make room for another song.
Either way, I think it's a damn shame God Part II wasn't performed more than it was. Bono certainly wouldn't be able to sing it like that anymore.
Yeah, God is up there with other great songs that U2 don't seem to want to play live anymore, such as Dirty Day, Please, Wild Horses, Exit, Wire, ASOH.