Yes. Like I said, there are plenty plausible, possible reasons. The fact that she is dead is not a concern. (I mean, out-of-character, as a player, my argument is not that she should not have died. Her death is a great story.)
The problem is that all explanations have implications for other stories, so knowing which one it is would be nice. And as there are other stories where major NPC characters die, and no mention of backups, and pretty much no stories where someone major is killed but no worries there was a backup, there certainly is something about them that explains it.
And again, players can invent possible reasons. I can too. But we can’t take the implications of those reasons as facts in the shared universe if those possible explanations are not CCP prime fiction.
Also note that cloning technology existed and was in limited use before capsuleers. You do not have to be a capsuleer to be cloned, though it sure helps.