Well, the weight didn't come into play, but statistically, an overhead chop from a sword would take the longest to recover from, if that's what you're referring to. If it's because I called her young, that also has nothing to do with her handling the sword. To Brennen, if he sees someone with a weapon, he automatically assumes that it's their own weapon and they can properly use it. Especially here at the palace, where people are coming to essentially fight monsters.