Sure. I mean, she claims she’d never fight the Horde on the Alliance’s behalf, anyway. Even if she doesn’t give a damn about it as an institution - it’s certainly never given her a reason to - she’d lose her vaunted independence if she were caught assassin-ing for the Alliance.
I think it’s interesting that since Anduin’s vacation they’ve had her build a rapport with the Horde’s friendlier characters instead. Baine, Calia, even Lor’themar to a degree (I guess she has met another blood elf in WoW). Maybe we’ll see her engage in more red-relevant affairs now the Alliance is headed up by two characters who probably wouldn’t be sympathetic to her boundaries.