Normally, I would agree, but at the same time, fighting a Mido is just a brawl. We know battle IQ and experience can close the gap in power if two combatants are close in power. Plus, Sakura, like Leona, has a style that extends beyond throwing hands. And personally, I believe it can make up the difference. When you fight Leona, if you have the wind element, you get the option to use that to boost your swordsmanship. Leona praises the idea, and it catches her out for a second, but our lack of experience and training with a sword costs us that fight. With Mido, both fighters would know how to fight, and there is no external factor like a weapon or some Chi attack to worry about. At that point, an element should allow for them to make up some ground.