Well let's be fair, what point would there be? I mean, she isn't a bender as far as we have been shown, so I dunno...to be fair, we haven't seen anything yet that says Asami WASN'T taken hostage...but I see what you mean
That being said, even you guys are all beginning to turn me into the conspiracy type now, though I still hold out it's just hopeful misdirection, since it is a pretty obvious charade otherwise in terms of what character to make the femme fatale.