Okay. Say she did get her powers from Athena or Aphrodite or whatever. That is still power that ultimately is derived from Zeus. And Zeus and Hera get their power from Chronos.
Go further up the family three and you get Uranus and Gaia, half male, half female.
And children of Zeus are a lot rare than you seem to think they are.
Nevermind that her parentage is just small part of her origin.
Also, it's a foul mood.