Whether or not the author is "redeemable" is irrelevant. At its core sexual misconduct is prioritizing one's own needs/desires and using someone else as an object to achieve them. It's one of the highest acts of self centeredness and it happens at someone else's expense.
I don't see how writing an article about how the author's sexual misconduct has impacted him isn't a continuation of the same problem mentality.
It would seem that if he had a breakthrough then letting the victims have the stage is the way to go. I believe he has to accept that...
1. No one is obligated to forgive him.
2. No one asked for him to do what he did.
3. No one has to let by gones be by gones.
4. He doesn't necessarily get to make art anymore. At least not the same way he used to.
I don't think that is what the author wants to hear, but its the only honorable path forward.