Based on how she reacted to killing them its neither.
Its the default programming error that makes them not see Alicorns as Fluffies, combined with her not having been prepared by giving her the knowledge that the programming is wrong.
She legitimately did not think that they were supposed to live, and without malice she proudly announced that she did what she thought was the right thing to do.
The fact that she spared and loves the Poopie means she can be taught. Unlike Alicorns, which is a glitch, they are programmed to hate brown and dingy greens but she disregarded that programming by choice because she understands the Poopie is a Fluffy.
I actually just wrote the mental process for this in a story chapter.
So I’d say she deserves to be spared. She needs to be educated, which the owner failed to do any just assumed she wasn’t a mentally incomplete sapient animal.