What determines that Seymour and Mika are important characters? I mean, yes, they have an important role in the plot, but in-universe? What would logically make them able to stay alive while others don't? Either others can stay too but you can't see it, or they stay because they know they can stay, unlike the masses, which is another argument as to why this religion is just one-dimensionally evil. And if they don't stay dead only because the plot says the can't, then that just further proves how inept the writers of this game were. And we'll never know, since nobody seems to bat an eye at the fact that they're unsent yet look human, even though Yevon tells them people change into monsters when they die.

I still can't see the noble goal you keep mentioning. Sin is a creation of Yevon and Yevon hides that fact so that they can use people's fear of Sin to unquestionably control them. All they do is so that they can perpetuate people's ignorance and make them faithful to Yevon, even if they do use excuses that people will die otherwise. Well, guess what, Mika. You could just tell people you're an unsent so that they could stay alive as long as they wished to. Oh wait, I guess they can't because they're not part of the plot.

That circular argument that gets used about death being terrible and the only solution is more death reminds me of how Spoony summed up Shuyin's motivation in X-2: "I'm sick of all the violence and hate in the world. That's why I'm gonna violently hate-smurf the planet with my weapon of mass destruction's cock gun."