I can see why she would be offended somewhat, since it's her way of doing things and all, but Uchimura is right tho... Maybe find a way to make magic more convenient or use magic and equipment...?
I mean, just walking away and leaving the dude alone in the middle of a dangerous forest instead of explaining why it's offensive and how he can not repeat the mistake in the future, and missing the possibility of perhaps even furthering the discussion and finding a solution that would be the most convenient and agreeable to both parties is a really shitty move to use and shows she is neither professional nor mature enough...
She basically just got offended and ditched her coworker in a dangerous place, who is not even from that world and is still learning the culture, just because he said something she finds offensive that is actually CORRECT, and when he only said that because he's thinking about how she can fight more efficiently and deal with enemies in an easier manner... I like her less now. o3o
Sorry, my spanish is too weak to properly write walls of text like this one properly... o3o"