OK, you're excused...

[Kuruharan]

Unfortunately, though, Tolkien doesn't remark about Finrod's ultimate fate.
It seems to us that Finrod made his sacrifice with the full knowledge that he might not be forgiven, and that makes his death much more meaningful.
Don't cha think?

I fear that you have been a bit inattentive. But be of good cheer…

…the green grave of Finrod Finarfin’s son, fairest of all the princes of the Elves, remained inviolate, until the land was changed and broken, and foundered under destroying seas. But Finrod walks with Finarfin his father beneath the trees in Eldamar.

-Of Beren and Lúthien, The Silmarillion

Emphasis mine.