"Innocent suffering" involves the needless affliction of those who lack the ability to comprehend and grow from their pain and suffering.
1. This term "needless" is being thrown around as if its an assumption, not a premise to be supported with evidence. How, and under what conditions, do you determine that which is "needless" affliction and that which has a teleological basis?
2. Who, and under what conditions does, such and such a person "lack the ability to comprehend and grow from their pain and suffering?" The gospel presupposes that human beings are eternal, self aware entities for whom personality continues on from phase to phase of existence (preexistence to mortality to resurrected, post mortal state), and hence, no possible form of suffering, in this view, could lack usefullness to any eternal spirit being.
From a gospel standpoint, it is not the pain and suffering itself that is of importance, but our perspective and interpretation of it, that matters.
And/Or those situations that aren't necessary since the abuse of free will creates enough evil to try and test every human being on earth ad infinitum.
Again, upon what cosmic, gnostic basis have you determined what is and is not "necessary" for any given individual in mortality?
The problem is that if God is complicit in causing/allowing innocent suffering then I HAVE A HUGE PROBLEM because that would implicate and/or indict God as evil. Whoa! I'm scared to even write that.
If God exists, then he is complicit in organized, coherent existence itself, so it would appear that you have dug yourself a hole from which there is no escape. The alternative would appear to be either for human beings not to exist, or for nothing to exist at all.
If nothing exists, there is no environment within which suffering and the experience of it can take place. God's primary crime, it would appear, was creation.