Not for nothing, but Justin has less reason (that we know of, anyway) to feel or have felt animosity toward any of the other members. Ultimately, it appears as though it was his decision to leave the group, which yes, made all the sense in the world, but still probably was something the others didn't necessarily like. So it's more understandable that if all of the others were also going to voice their true feelings, JC, Chris, and Joey would have a more negative slant on their version of the split than Justin's version would.

And if this is how it is before the book even comes out, then yes, I'm kind of scared what will happen when everyone does have their hands on this thing.