Each of the major changes in our evolutionary development are themselves so improbable without God's involvement they would have to be a miracle and thus proof of God, the giver of miracles, since atheism doesn't allow for miracles.
Atheists don't think God would be all-good to allow suffering, but that suffering happens anyway in a naturalistic world, so is it a doublestandard to accuse God and not an atheistic world. Any theory someone has ought not to contradict itself, and this accusation against God by atheists is contradicting themselves.
If God caused less suffering in the world would that draw more or less people to Him in a loving relationship? If there is no suffering what need do you have for God? Once you realize suffering occurs because of man's sin, you will be dependent on God.
In order to maximally save the most, it appears a world of suffering is necessary, because God is not going to prevent the creation of some on account of the many who refuse His saving grace.
To deny the cause of the universe outside of time is to deny a cause for the universe, thus nothing would exist. No matter how you think about God and the universe, each time the only explanation that makes any sense is that God did it.