I have a feeling the chief OSM schema guys mostly live in places where burial is done in the traditional sense of "graveyard" and have no concept of "a building for holding ashes".

I currently view `landuse=cemetery` to be "a land that is used to hold/bury dead bodies". This would work alongside e.g `landuse=residential` to be "a land that contains houses/homes for people to live in" without needing to specify the exact format of homes/houses.