I'm pretty sure that's not what AE meant. He's generally a bit more nuanced in his thoughts about Christianity.That's not what he said. What he said was.
1. Your repentance would mean nothing if you didn't know Jesus or the reason why you have to repent
2. That if you serve any other God other than Jesus, you will die in your sins.
Also, since you do seem to believe that there is an unforgiveable sin, does that mean that Jesus' death wasn't great enough to cover everything? Doesn't that seem a bit blasphemous in itself: Oh, sorry Son of God, you just endured an extremely gruesome death and defeated the forces of Satan, but it just doesn't quite cover it when someone decides to do something particularly nasty.
You also claimed that suicide would be an unforgiveable sin, since you can't ask for forgiveness afterwards. By implication, you must believe that you must ask for forgiveness/repent of every single one of your sins in order for it to be forgiven. What if one slips your mind or what if you didn't know it actually was a sin? Could you just say a blanket "Please, God, forgive me for all of my sins", and since all of your sins would include your future suicide, wouldn't it be covered?