I think this may have to do with tropes about AI as well as gender roles. I'd be interested to see a breakdown between "Ai goes rogue" stories and more benign portrayals and whether this influences the figures.

My suspicion is that narratives built around AI being dangerous and a bad idea will overrepresent men more than positive or neutral portrayals and somewhat close this gap though not entirely. I think its difficult to draw a conclusion about women being underrepresented in a prestige field without evaluating how that field is being portrayed.

"If it goes wrong men did it and if it goes right women did 50% of the work" isnt quite the misogynistic portrayal some might draw from these findings. I think more analysis is necessary to draw conclusions about this data given the absolute glut of "AI bad" stories.