Looked further into this- it was a study of 29 women (26 of which were heterosexual, 2 bisexual), compared to the 212 MtF transsexuals in Blanchard's study. The results were nowhere near "women are also autogynephilic", but rather, "Blanchard claimed that autogynephilia doesn't exist in women, but here's some who get horny in lingerie."
Here are the questions and responses from that paper, you might notice that most of the answers fall under "never" or "on occasion":
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I just don't think this is a very good paper, considering that it's done on 30 straight women on whether their own bodies get them hot or not.