Well I feel that since she was attempting to get her partner to Dominate her, even as much as he may wanted to, as a Dominant if he didn't want to, and she had persisted to the point he relented and did as she wanted. It could be seen as topping from the bottom because she controlled the dominant.

I feel topping from the bottom is done with ill intent, the submissive looking to undermine the Dom. If that isn't the intent, then it doesn't fall into the category of topping from the bottom.

But thats just my view.