If you want to have a serious discussion about gender relations within shounen as a genregraphic, then fine, let's do that. And there's certainly a lot to talk about. But pretending that the world of shounen has not moved on or changed since the days of Dragonball and Fist of the North Star so that you can make excuses for an author's sexism is just not going to fly with me.
Shit, even Dragonball had Vegeta getting his ass handed to him by a girl. But I digress.
On a tangentially related note, am I the only one not buying the 'Sakura stands absolutely no chance against Sasuke' line? I'm sorry but Sasuke just...does not seem that impressive to me outside of his bullshit eye powers, but if he uses those much more he's going to go blind.