You have a point. The original cartoon was not necessarily meant for children.
And it ran right into a bad parenting problem, especially when VCRs entered the home. Lazy parents looking for some “me time” would say “oh it’s about bunnies” put it in, plop the kid in front of the TV and go do whatever then the movie gets to the splashes of blood bunnies tearing each other apart part and there’s screams from the living room and nightmares for weeks. You can do the same story and not make it quite as scary, and maybe tone up the packaging so people don’t assume it’s sweat and innocent.