lizbee | Stupid Avatar canon question

Is it ever actually said, in the show (stuff Bryan and Mike say in interviews only counts if I like it) that Ursa is not a firebender?

Because I keep seeing it come up, but I don't remember anything about it in her (very brief) appearances, and it doesn't make sense to me. I can't imagine Azulon letting even a second son marry a non-bender, or Ozai being willing to do it. And in any case, she's Roku's granddaughter and Azula's mother. I'm pretty sure she can light a match, y'know?

This week's AtLA obsessions: Ursa and Azula. Is there any Azula redemption fic? It seems like there should be -- I mean, there's a whole massive Zhao redemption comic, and on the whole I'd say his crimes have greater spiritual consquences than Azula's. But she is a girl, and that's a taint that no amount of cleansing can remove.

(My other whim, for schmoopy Ursa/Hakoda fic, was somehow answered. Only the fic is too schmoopy. I NEED A PROPER BALANCE, PEOPLE! MY WHIMS, CATER TO THEM! Or I'll have to write the damn thing myself. And we all know how that ends up.)