In his letter to the Romans, Paul makes a very dangerous suggestion - that God orchestrated, in some way, the fall of man, in order to save us.
For God delivered all to disobedience,that he might have mercy upon all. (Rom 11:32)
If not orchestrated, God at least allowed it to happen. We cannot doubt, at the very least, that our Almighty God had the power to stop the fall. Why did He choose not to? Out of love for us - a love so ferocious that it makes parental "tough love" look cuddly. God's love acts with God's wisdom, which is well beyond our understanding. Yet we can glimpse it, and we can, as loving children, find some small idea of what our Father is working at and appreciate the depth of His love.
Do you think the daughter in today's Gospel (Matt 15:21-28), looking back, would have still wished her suffering had never happened? Her torment by demons, for all the pain it caused her and others around her, was the instrument of her miraculous healing by Jesus.
Remember Paul's words in another letter: "we proclaim Christ crucified". (1 Cor 1:23) In order to lay eyes on the crucified Christ, you must yourself walk the road to Calvary.