You missed my point entirely. It's easy to scrub text and watermarks from comics too and thus steal them.

Moral issues are stuff you don't like. There is no such thing as objective morality.

If the artist is frustrated with art theft, they should write speeches and other such effective ways to communicate that frustration without just drawing a bad comic with Sans acting as a mouthpiece saying "HEY! Stop doing shit this comic art- I mean, stuff I don't like!".

Yes, I have had creative work (which I spent over a hundred horus on, by the way) copied and spread without my permission and without a source to me. I did not express my discontent by making a comic about Sans calling the thieves shitters.

I do blame the artist. The comic is poorly made and ineffective at conveying their message. Why is art theft bad? What's the problem with Undertale compilation videos? Why should I care? How did it affect them? The artist doesn't tell me. They just say "don't do it". That's bad. The comic is bad. The message is meaningful, but is conveyed extremely poorly and frankly in a cringeworthy manner. It is extremely childish to try express and defend your beliefs through comics featuring fanart of characters from a popular work mouthing out your beliefs OOC without any defense. I can grasp that the artist is frustrated. I can also grasp this frustration led them to creating a poor excuse of a comic that fails in almost every way, which I will critique them and the comic for.