1. It's Normalizing
Let's start with the fact that Cate Blanchett has won two Oscars. LGBT or same-sex relationship-acknwowledging winners of Oscars are few and far between. Sir Elton John, Jodie Foster, Dustin Lance Black, Alan Ball, Anna Paquin, Angelina Jolie, Melissa Etheridge — and that's where the list kind of stops. Any addition to that list of rare birds, the best of the best of their highly visible and culturally visible profession, is an excuse for personal happiness.
If Cate Blanchett, who's been Galadriel and Veronica Guerin and Queen Elizabeth and Hedda Gabler and basically every brilliant female role going, can casually add "Yep, totally dated some ladies" to an interviewer, I'm pretty sure my life as a bisexual lady just met a role model and an inspiration.
2. It Avoids Labels
Some commenters on gossip sites are giving Blanchett short shrift for not copping to being bisexual, or not talking about her past relationships in more detail. For me, however, this is an important decision on her part: the idea that sexuality doesn't have to have labels if the participants don't want them.
3. It Represents Progress
I respect Blanchett's decision not to be part of the LGBT community for the duration of her career. For all we can say "I wish she'd been open about it earlier," Blanchett was already married to her husband before she hit the international stage with Elizabeth in 1998. It probably didn't top her agenda as a thing to discuss. Also, considering that Ellen Degeneres' sitcom was cancelled in 1998 after she came out as gay, it's not as if Blanchett was entering the profession at an LGBT-friendly time. Her casual reveal shows just how much things have changed since then — and thank heavens for that.
4. It Helps The LGBT Situation In Australia
There is no gay marriage in Australia, or any sort of formal relationship status beyond "de facto" for same-sex couples. They have some of the same legal rights as heterosexual couples when it comes to taxation and social security, but don't have the same worker's compensation death benefits or partner benefits for Defense Force veterans. Just to give you an idea how bad things are, in Tasmania, homosexuality only became legal in 1997.
5. She Didn't Frame It As 'Experimental'
Note that Blanchett's statement, short as it was, didn't immediately repudiate anything. She didn't follow up with a gasped "But I'm not a lesbian!" or "But I was only experimenting!" As a woman who has followed the same life pattern — having relationships with both genders and marrying a man — I am intensely grateful for that.
6. It Doesn't Discredit Her Marriage
Blanchett, as I'm sure many newspapers will remind you, is married to a man, and has been since 1997. That's nearly 20 years. It is fairly clear from that fact that her attraction to women, contrary to popular assumption, hasn't set up her relationship for ultimate doom because of her insatiable lust.
Bisexual and both-gender-attracted people, aside from the stereotype of "greediness," are often viewed warily as longterm partners because their faithfulness is in doubt. Blanchett's long and apparently successful marriage puts paid to that nonsense.
If anybody rudely wonders whether my marriage is going to last I can just shove her and her beautiful cheekbones in their faces and watch them shut the hell up. And that pleases me immensely.
(Also, any excuse to look at her face, frankly.)