Uh.... [What? What the heck was she up to in the other Wonderland.] Usually it's more like, you're prophesied to kill your dad and marry your mom, so your parents get rid of you except you don't actually die, you get raised not knowing they're your parents and then, guess what, you kill your dad and marry your mom without realizing they're your dad and mom.

[Oedipus in one sentence. You're welcome.]

Or in this case, I don't know. We're so busy trying to stop the White Queen from taking over that something else really bad happens? It's not an exact science.