Mike, the obvious reason here is simple: nobody will know whether any victims were interviewed, nobody will know if what happens in that trial, whether it is fair or not, etc.  And the great irony to all of this, is that  by keeping all of this stuff hidden (regardless of the verdict), the church's leadership is demanding that the laity and world trust them to get it right.  

What makes that particularly ironic, is that the church is quick to condemn despots and others who try to keep things they don't want the world to know secret,  

In today's world, there is no justification, ESPECIALLY after all the promises, comments by church leadership about the church 'getting it' and changing its ways.  All this silence really means is that nothing has changed.  The verdict doesn't matter, because as far as we will know, Apuron may have become a sacrificial scapegoat offered to appease the laity, perhaps because he angered somebody in the curia, or perhaps because he's guilty (or not...)