I keep thinking the episode would have been stronger if kurn had physically died, then if hed had his memories deleted and become a new person.
For one thing it seemed to be trying to avoid ticking some right wingers with anti suicide stances.
Though i agree that an actual death would have been much better, I doubt it had anything to do with upsetting right-wingers.
That or he should have come back later on. It was such a bad end to such a great character.