How does it contradict the research? By 'no matter what we do', it doesn't mean she's swapping out the geeky material for the magazines (which makes women more comfortable, apparently), it means she's doing everything without changing the requirement that the room needs to be filled with nerdy/geeky material. The second part of the sentence reinforces the fact that even if it's made clear that it will be an all-female room/team, they still feel uncomfortable.
It's a poorly worded sentence. I felt it contradicted the research on first-read as well. Since they specifically placed objects rated with high masculinity in the room, the "even if we make it all female" sounds as if doing the opposite doesn't help.