If you need something magivcal to defeat something that means that you are fighting someone using magic. Diferent one in our case. So they are not just normal human with etream power i think. They are something different.
I can hear something insulting my beloved FMA here. Stop it or I'll kill you (it would be hard to work without manager but i'll manage somehow). And to be killed by Kitten with Hammer is shamful you know. Though my preys don't complain - they just can't.I guess if you cut one up into tiny bits, for example, it would be dead - this isn't FMA.