Yeah, that was clearly just the group having fun, sounds like it might have been some kind of in-joke. Stuff like keygen music and adding extra fun stuff to your cracks has always been part of the culture. For the most part, while I’m not saying there is zero risk, but as long as it’s from verified groups with good reputation, your pirated software will be safe to use - also part of the culture.
Which I would classify as pretty weird, but not really unethical. Besides, I think the comparison doesn’t fully work - it’s more like, growing a lump on your body somewhere, having it removed, and saying “hey, can I eat that?”. Which I would also classify as weird, but not unethical.