If they had included Facilier in the manner that I suggested a while back (as a spirit who we bump into after stumbling upon his grave and being accidentally transported to the Other Side), it would also have also come with a convenient way to include Ray as well if they wanted. As he is also now a spirit, Ray could have helped guide us up the final lift and out of danger. Big missed opportunity not to include an impressive fiber optic curtain effect for him there too. Could have hit two birds with one stone, but instead they missed both birds.
Ray is still more a part of this retheme than Facilier though, his voice is used in some of the music. Makes no sense that his voice is present though within the context of the story they went with, I have to wonder if whoever edited that track didn't recognize it (or perhaps wasn't familiar with the movie's events) and left it there by accident...