If he never encountered questions (and answers) about why evil things happen, or hell, or sickness, or apparent contradictions in the Bible, then he didn’t read the Bible much (Job?) and Hillsong utterly failed him.
Rather than condemn him, I condemn Hillsong for using someone who apparently was never grounded in the Word. For thrusting him into the limelight before he was ready. And for not teaching the whole truth. Babes should not be required to be leaders, and any church needs to teach the whole truth, not just the convenient truth - “the whole plan of God” and not just the parts that make people feel happy:
“22 “And now I am on my way to Jerusalem, bound in my spirit, not knowing what I will encounter there, 23 except that in town after town the Holy Spirit testifies to me that chains and afflictions are waiting for me.....25 “And now I know that none of you will ever see my face again—everyone I went about preaching the kingdom to. 26 Therefore I testify to you this day that I am innocent of everyone’s blood, 27 for I did not shrink back from declaring to you the whole plan of God. 28 Be on guard for yourselves and for all the flock that the Holy Spirit has appointed you to as overseers, to shepherd the church of God, which He purchased with His own blood. 29 I know that after my departure savage wolves will come in among you, not sparing the flock. 30 And men will rise up from your own number with deviant doctrines to lure the disciples into following them. 31 Therefore be on the alert, remembering that night and day for three years I did not stop warning each one of you with tears.
32 “And now I commit you to God and to the message of His grace, which is able to build you up and to give you an inheritance among all who are sanctified.” - Acts 20
Shame on Hillsong.