Yea, they have a sign and some pics. Regardless of the photos, this gag screams cheap heat. You can’t even tell if it was planned or added as a last-second - that’s how “non-essential” it is. They've done dead animals before and never have elicited this kind of reaction. They've also had dead babies/children. They've all served some purpose in storytelling or made sense in the scope of the house. Again, if Helix met his demise by being overtaken by the parasite, or eaten by the Fish men, I bet we see a different reaction.