This is a no-lose for our enemies. If she's an incompetent leader, it makes their job easier. If she's so incompetent she gets her troops killed, it makes their job easier. If she's so incompetent and gets so many of her troops killed that they refuse to follow her, the resulting morale drain makes their job easier. If she's actually competent, she still won't be able to do the things her male troopies do, so ... you guessed it ... it makes their job easier.
The one thing it does NOT do is make our Army stronger, all the PC bilge notwithstanding.