that's because...name another famous, classical artist who wasn't a man
granted my art history education is not the finest, but I can't think of any...ironic because the 2 art blogs i check the most are both by women, and mirre is going head to head with snake 
Not looking in my artbooks, Artemisia Gentileschi commes to mind. Italian painter who worked at a time when you wouldn't expect females to be excepted as artists. (1600s according to the net.) Given that my artschool was more or less exclusively run by women, about half a year was used to go through "female art history" so I've had my share of non-male painters.
I feel Frida is, or was mostly popular for being eccentric and making eccentric artwork. She was interesting, and got attention accordingly, much like Salvador Dali. That's not to say she didn't have great art, but being well known is not the same as being talented. Then again, I would rather have a teacher worshiping Frida than the people mine have. I's an odd feeling when your teacher goes through a praise-speech for the woman who destroyed her face through surgery and gained weight to photograph herself naked to demonstrate against female oppression. (brave, but not my type of hero)
In short, Frida's unibrow is lord.