It isn't, and I'll tell you why: "separate but equal."
What's being done here is that, yes, they are adding more material that will (in theory) be less overtly sexist and misogynistic but by calling it out as a distinct grouping unto itself, separate from their primary IPs, they're effectively saying that girls are still very much unwelcome in what they've been doing. It's paying lip service to equality but going out of its way to highlight the inherent inequality in their business.
Does the phrase "separate but equal" sound familiar? It might; it's been used in US history before. Here, let me do a Google image search and help jog your memory. The first image that comes up when I search for "separate but equal" is...
Yes, I suppose it's better to do something instead of nothing at all, and even this bit of tokenism is (sadly) an improvement. But it showcases an ongoing sense of misogyny coming from DC, and reinforces the idea that everyone there is missing the point.