I disagree. If you believe that God created us knowing completely what we will believe in our lives, then why would He punish/reward someone for believing something? Doesn’t He know what will happen to them after their death anyway?
God gives us all free will to make our own choices, do as we please. He hopes we choose right. We are not puppets on a string. He is omniscient - all knowing. He knows how we will choose, what we will do, what wrong paths we will mistakenly take or He would not be God. His being omniscient does not conflict with the fact that He gave us free will. There is no conflict with the attributes of God and the free will of all men, His creation.
The content of this article in not concerned with punishment and rewards in the hereafter. It is about location. Where will each individual soul spend eternity. It will either be in Heaven with God or apart from Him. The only thing that decides your location for eternity is faith in Christ Jesus as Lord. One’s eternal location is not at all dependent on how sinful/bad/evil a person was or how good/godly/saintly one lived. The verdict of where each person ends up is only based on did they or did they not believe that Jesus Christ was their Lord and was He God.
Regardless of how much sin and how wretched the sinner - their faith is what decides the verdict.