It's been 10 years since the game was released, so anyone vaguely interested in FF probably knows everything about that by now. Besides, it doesn't really mean anything if a character dies in a fantasy game, there's always some silly way to resurrect them. Well, in most cases. (Take FFIV as an example. A minority of the characters didn't supposedly die.) I was pretty sure myself that she'd be resurrected by the end of the game when I first played.

But I agree with you, spoilers are incredibly annoying, it's pretty hard to avoid them while discussing the game on the internet.

Anyway, it'll probably get removed soon when the joke gets old.