Personally, I dislike the term "strong women," for the same reason I dislike the term, "strong men." Much better to have believable men, and believable women. A "strong" character just seems like a code word for "flawless", which is just another way of saying "one-dimensional" to me.
For me, character flaws and strengths are opposite sides of the same coin, and it's what drives conflict. Somebody's "good" points might also lead to fundamental flaws, or perhaps their good points mask their flaws, or compensate for them. For example, in MOW, the character of Nita, the Head of R&D at a robotics company, wants to help improve the plight of women in certain countries by regulating the sex industry and introducing robotic workers to that effect.
However, in her zeal to do this - and she fundamentally believes that she's doing this for the greater good - she is willing to overreach and do things that are, shall we say, not exactly above board. "Ends justifying the means" is a classic case of misplaced character strengths. The fact that she's female herself is neither here nor there, though it might make her arguably more inclined to help other women. She's certainly not a bitch-queen, whatever that is. Conversely, and I hope I'm not being too spoilery here, but once her character flaws (judgment clouded by noble aspiration & ambition) have gotten her into a bad situation, she uses other strengths she has to help resolve the situation.
The other main female POV, Tilda, is much tougher on the outside than Nita, but shows this tough exterior to cover up a soft kernel of vulnerability. Once the soft vulnerability is exposed, she has to draw on other character traits to deal with that. Again, it's character driving plot, which in turn drives and changes character. So is she a strong character? I don't know. She's good at her job, is highly driven (owing to her backstory), and doesn't suffer fools gladly. But it's her desire to get a very particular job done that exposes her to that kernel of vulnerability, which is traumatic for her. So it's her "strengths" that drive her to the situation that causes her character to unravel, and she has to deal with that. IN which case, you could argue that her strengths are her flaws.
To me, asking myself: "is my female (or male, or whatever) character strong enough?" is not as interesting as asking, "why is this character the way s/he is?"