It's not clear from this article that the researchers claim any evidence of uptalk in the past being more common among girls and women. The only claim seems to be that this current research showed no difference based on gender.
Which isn't surprising. There are a lot of stereotypes about language usage differences between men and women that are entirely without basis, often in reality being the opposite of the CW.
Well, I'm sure they discuss that risk in the actual paper. But it's worth noting that they've done far more research into the topic than people who repeat the myth that uptalk is "girl talk".
Which isn't surprising. There are a lot of stereotypes about language usage differences between men and women that are entirely without basis, often in reality being the opposite of the CW.