Oh, it also gets better: some force or other turns all the children born after the defeat of the Regent's Invid into glowy-eyed psychic children, though unlike Aurora, they're not creepy or mystical and seem rather normal when they aren't doing their thing.
I swear, End of the Circle should come in a baggie...
I do love that book, though--sometimes in spite of myself--mostly because the there's a strangely "epic" feel to it all, and I do in fact love weirdness that warps a show's established universe out of joint.
When it comes to the novels, though: the writers did like to play up the idea of Dana somehow having special powers, like in the novels when this crazy scientist bastard Dr. Zand was always always trying to study her and there were several more characters who thought Dana was "special" (and not in the short-bus sense that we sometimes think).
Personally I never got that: isn't the whole point that Zentraedi and human are genetically compatible, so their producing offspring should be no big deal? Answer: yeah it was. So they're just making shit up...
...thought didn't Dana have her freaky moments in the original Masters dub, too? I think so, but I don't remember much about it.
Also, yeah, the whole EotC plot hinges on Aurora, but it didn't have to. Something else could have been written. Like I said, I would have had less of a problem with her if she'd have been a "real" character instead of a cilche, but that's all we've pretty much got with her.