How is it a flashy super power if it's just science, yeah crazy pseudo-science but it is science nonetheless. It's not anymore ridiculous than Kasumi shooting beams out of her hands, Ayane creating a mini-warhead with hers, The ninjas constant disappearing acts, etc.
It's not really a different scope, it's just complaining about the most basic shit. It's like complaining if they add a character who has a gun in Soul Calibur, it would be too much for the game.
And yes, the loli crap needs to get wrecked super hard. When peoples' definition is simply short and has a babyface, that's not a loli by itself.