@Kagamimocchi Remember the time when all humans became unable to use magic without her intent? Now some kind of disaster could potentially occure because of careless wording as well.
She's overreacting. it's not like she'll ever order them to do bad things. The worst outcome is that they're bound to the bodies they've possessed- at least from what I understood about Kotaro and Kotaro is more than happy where he is rn.
There is no reason for her to beat herself up. I mean, Rin literally got herself a body and came to her just to get a name. There was clear consent.
But I guess we need some more drama.