While we lament the apparent injustice of pain and suffering, how often do we forget that every good thing in a fallen world is wholly a gift of God's mercy and grace.
Every one of us loves Pauline theology, but few of us want Pauline pain.
I think people can get a little weirded out by pain, suffering, and death. They don't know what to do so they end up saying things that are hurtful to people who have experienced loss.