I'm for renaming for sorting/finding purposes, but for immersion, only if the names are still easy to sort through. It tends to be a bit of a pain for me as a builder when I have 5 "altars" with 5 different appearances and have to open the properties for each to see which appearance it is.
You could just view them with the toolset's model viewer - it looks like a magnifying lens on the far right side of the toolbar.
The changes I'm talking about would be as descriptive as possible without breaking immersion. For example, instead of "Altar, Waukeen" or "Bone Pillar, Gargantuan" they would become "Altar of Waukeen" and "Gargantuan Bone Pillar." The comments tab, which is visible in the viewer, would contain more detailed information, if needed, about the specific model.