I don't think your wrong for it. I also agree that dioromas with death are needed in historical modeling. As often said before in topics such as this, the objects we build models of were built to bring death and destruction. Showing that death and destruction is a way to put a true perpective on things and I find it nessarity to show the reality of war as long has its done repectfullly.
This last weekend I was at a model show and there was a diorama called "Ambrush" I think. It was of a German Stug whose crew was caught taking a break. Almost hidden in the grass was a dead or dieing German solider. It looked very convincing to me and seemed to be a very good example how to do it. There was almost no blood and what there was wasn't blight red. It was subdued, it was the posture and the face of the dead German that told you what you needed to know.
If you want to do the gory stuff you might be able to do it repectfully but I think it would be very differcult. Its easy to go over broad with it.
Anyway I also vote for you to do it and put up on here so we all can see it.