For me personal it doesn't really matter as we barely use it, it's also an unimportant point for me to add to my big list if ER / PR . If anybody makes one i will support it and add my company to it.
I can't image that nobody made an ER about it once.
is there really a need for a dimension to COM witihn the 3D file.
In draft You atumatically can put a defined block onto the COM, where You can see the COM better than any point in 3D and where You can dimension to in any view You like.