From what I got reading the article, they don't say she's "cancer-free." That was from the British newspapers:
""This little girl will not face the specter of developing this genetic form of breast cancer or ovarian cancer in her adult life," said Paul Serhal, a consultant at University College London Hospital and Medical Director of the Assisted Conception Unit.'"
Another article I read about this said that the husband's mother, grandmother, and sister all had breast cancer that had linked to the gene. This isn't your average Joe who just wants a "perfect" baby.
I don't see this as being too different from Ashkenazi couples who do genetic screening to prevent Tay-Sachs.
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