Maybe he’s a Lewisian annihilationsist? God does forgive everyone’s sin (and not eventually, as though He isn’t forgiving their sins now), but people still reject God permanently and God cannot save them. Then God authoritatively annihilates them (though He has forgiven their sins, because He still cannot save them from their sins) or they annihilate themselves (against God’s capability to keep them in existence)?
I’m super-busy this morning and haven’t read Lotharson’s link yet, other than the bits quoted here; but I’m a Lewisian theologian, so I’m extremely familiar with his positions on the topic (he’d go for authoritative annihilation), and what little I’ve read so far sounds similar.
I’ll have to get around to your post later today, L.