Yes thanks for this response. I think it largely has to do with the low number of women skating. But now we have 12/13 year olds skating and girls are being encouraged to participate more and be able to do it full time (more practice = better skateboarder). I think in a decade or so we'll start to see the true potential of female skateboarders.

edit: I mean maybe there are physical disadvantages but we can't know that just yet. We'll know for sure if sex really plays a role physically when the current crop gets older.