They are being mainstreamed into big leagues, like the NWSL (US) now. Banda's team was 7th last year. It's no. 1 since he's joined. It's at the point where it's impacting hundreds of female players in one of the best leagues in the world.
Zambia actually beat Germany in a friendly last year, a team much, much better than them. It was basically Banda outpacing the German women the whole game. Fortunately, Germany figured out how to beat them at the Olympics, but the game against Australia was much closer than it should have been.
The fact that ONE male* on a women's team can have such a huge impact should be enough of warning siren to FIFA that it can't be allowed to continue.