Does a person's sin cause them to stand before the Great White Throne?
No. Christ's death paid the sin debt for every human being, so a person's sin is not what causes them to stand before the Great White Throne. The transcript says they will not be faced with the fact that their sin caused them to stand there. Therefore, sin is not the determining cause.
Les teaches that when Christ died, He paid the sin debt for every human being, not just believers. He cites Hebrews, which says He tasted death for every man, and Paul in II Corinthians chapter 5, where if one died for all, then all were dead. Paul also says you are forgiven all your trespasses, meaning Christ's death paid the sin debt for every human being. Because of this, Les explains that people will not come before the Great White Throne and be faced with the fact that their sin is what caused them to stand there. So a person's sin is not the cause of standing before the Great White Throne.