Women developers aren't better than men developers at writing business logic and math for videogames, just like women oil rig workers aren't better at extracting crude oil. It doesn't matter who does either one of those, genders don't play a difference in code writing just like they don't play a difference in train conducting or operating cranes. The end result is you have a bunch of code that executes machine instructions. There is no "female object orientation" or "female monadic enterprise patterns".
If you were to argue that female game designers, product managers, producers and writers are better qualified to make games for women, female marketers are better at marketing to that demographic, sure, I can absolutely buy that argument.
However the gender imbalance people always focus on is the one for individual contributors and programmers, not marketers, not designers, nor people doing the higher level product or creative work.
If diversity really makes a difference when it comes to writing machine instructions, diversity should matter for mechanics, miners and oil rig workers.