It is in our human nature to label such. You have seen it throughout our history.
Black people had limited rights in the US, even after slavery ended. Those born on a farm were called peasants. Angels and demons are both spirits, but to categorize them by their morality, they have different names.
If one is to react to magick being colorized, then I would say you were a fool. Animals and humans all possess living energies and have such abilities to control these energies, but we are not the same. Any person comparing a dog and a woman, would call the woman a woman, a dog a dog, and not label them as one because we share energies, but label them on their differences.
You can easily call magick black or evil, but it does depend on the caster to decide if it is for the good or the better. It is in our human morality to label things, and so we tend to do just that. There is no right or wron when you come to question morality, because humans all share some general sameness in it, but can still differ.