-snip-
Blood and gore are out of place in Blockland. Furthermore, some of us find it disturbing, not necessarily in general, but in the context of Blockland. That's really all there is to it.
Besides, who's to say it will stop there? What if blood and gore become default on a larger scale? Okay, so they probably won't, but the encroachment of blood and gore into default content drives me up the wall nonetheless. I hope you can understand why.