I guess that's marginally interesting, and I suppose it would be more significant if her father were one of Osama's brothers instead of one of his half-brothers. It isn't unsurprising that Osama, being one of 50+ children borne of his father's four wives, would hold some dramatically different views from some, or more probably many, of his siblings and half-siblings. That being said, I feel that this story is far from insignificant. Specifically, this story is significant for showing the diversity of opinion and belief within the various Muslim communities throughout the world.
Wafah Dufour is a California-born musician and law school graduate who currently resides in New York. Her father, Yeslam Binladen, has intentionally changed the spelling of his surname to distance himself from his half-brother, and he gained Swiss citizenship in 2001. He has been but one of Osama's siblings to condemn the actions of world's most wanted terrorist. Wafah Dufour changed her surname to her mother's maiden name to further distance herself from her uncle.
I thank and applaud Ms. Dufour for her courage and her willingness to show another side of Western Islam, one with which many of us may not be as familiar. Also, I offer my most sincere condolences to her. I cannot even begin to imagine the pain that she has faced knowing that she's related in any way, no matter how distantly, to that monster. It's bad enough when someone commits an act of evil, but it's so much worse when it's a member of your family, even an estranged family member.