Isn't it just a record of things Wu has done on the internet when known as Brianna Wu and John/Brianna Flynt? The biggest argument for it qualifying as doxing is if it has the information regarding how it was proven that Brianna didn't flee from her home. Although I imagine the addresses would be removed. However some people consider it doxing just to show a pic of their house... despite Google doing that to everyone's house.
I feel like there might be more of a "deadnaming is harassment/doxing" thing going on with those who enforce the twitter rules. I think the concept of punishing people for "deadnaming" a public figure is pretty fucking stupid since it basically allows someone to hide what is most likely a majority of their life.