It sounds like a very severe case of Munchausen by proxy.
That is a where a person, almost always female, will hurt her children, even kill them, so that they (the abuser) may get attention. In this case it is her pets, pretending to rescue them and gaining much attention, when she herself is the cause of their pain. I wonder how much of this goes on without anyone knowing about it?
I cant say I have sympathy for her, because I do not, I don't mean this post to imply that, I have sympathy for the poor beings she abused.
Just trying to put reason to what in my mind is horiffic and cannot be otherwise explained.
to the kitties to heal, and so sorry little ones who do not make it