The moralistic outrage is that people still have an outdated concept of intellectual property, and a blanket fear of corporations owning technological progress.

The truth is, no one can actually own an idea or style. But we have laws that try to make it a real thing. Because of regulatory capture, copyright truly only benefits corporations with lots of money, not all the little indie artists that actually would need it.

Hell, most these indie artists make their money drawing and selling fanart, which is the most literal definition of copying. Yet no one worries about that.