Someone didn't see Brave, clearly. That movie's almost preachy in it's feminism (yet still manages to be completely awesome). And Tangled? Yeah, um, the princess defeats the villain and saves the love interest after striking out on her own and finding herself in a sort of vision quest.
Frozen? Our primary heroine is suckered in by a literal prince charming who almost murders her. (Oh, spoilers, BTW)
Look. Point is, Disney movies reflect their times, and so do their heroines. Snow White was made in 1937...we're lucky they let her live with the dwarves without marrying one first,. Cinderella, Sleeping Beauty, even The Little Mermaid and Mulan are products of their eras. And now, in 2014, here we are.
Snow White is no less legitimate as a role model than Anna or Eva, as there's nothing she does that's morally wrong. She just lives a different way, and there are plenty of role models who do it differently. Disney is setting out to make movies to entertain people, not just girls. (Protip: I'm so not a girl.) Thankfully, they really haven't let pop psychology hangups get in the way of telling good stories.