Suppose we agree with the following: in every case of moral responsibility, there is a flicker of freedom, construed as involving a counterpossibility of some sort (there's been discussion of this here already, so I won't repeat), but also that the flicker in question isn't sufficient to undergird attributions of responsibility. This, I think, is John Fischer's semi-compatibilist position.
Suppose also that only necessary universalism, as opposed to contingent universalism, has a chance of solving the problem of hell. On this view, it is metaphysically necessary that everyone end up in heaven.
The primary argument against necessary universalism appeals to the value of freedom and the impossibility of guaranteeing that a free individual chooses in whatever way choice is related to presence in heaven. This argument has to be replaced, I think, if the above account is correct. I think freedom has been valued to the extent it has because it is thought that freedom is necessary and sufficient for responsibility. With this assumption, the freedom argument makes it your own fault if you're not in heaven.
On the above account, freedom may be necessary for responsibility but it is not sufficient. So even if there is a flicker of freedom, that is no guarantee that it's your own fault if you're in hell.
That still leaves it possible for a person to be in hell and it to be their own fault. But the kind of possibility here is weaker than metaphysical possibility. It is the kind in which the truth of what is said before doesn't logically imply the opposite of the claim in question. That is, the kind of possibility here is logical possibility. There is no argument, however, from such a logical possibility to metaphysical possibility. Hence, it looks like the freedom argument against necessary universalism succumbs if the Fischer view is correct.
Sound right?