The Importance of Compatibility in Moral Responsibility

So long as there aren't decisive problems for the kind of compatibilist view, I think it's a safe position to be in. If somebody is accused of something and it turns out that they couldn't have done otherwise than they did on the surface of it, that seems like a pretty good reason to say that they're not blame worthy for what they've done. But if it wasn't part of the explanation for why the agent did what they did that they couldn’t have done otherwise, then  it Seems to me that it'd be kind of odd to use the lack of alternative possibilities as a sort of defense. There's a point in Zoolander where