Well, the producers of Lost have gone on record many times to say:
Spoiler:
gur fheivibef ner abg nyernql qrnq, gurl'er abg va chetngbel, rgp.

That doesn't mean that they're not lying to us, but I don't think they are.

Assuming that the helicopter girl is telling the truth, it seems more likely that the Hanso Foundation faked it somehow. Of course, I have no inclination to assume that she is telling the truth.

Besides, if you're saying that that's a reason Charlie should be dead, then why not the rest of the survivors, too?