Yes, it should be added. Its a bother tho, just because there is a lot of different systems that expect that such and such nodes of such and such number exist.
EX: the actions and their closest node. If you deleted a node, all of the node numbers would change, and everything would have to be recalced. The alt route system also will be node number specific. Not that thats so hard to recalc this stuff mind you, but I'm a lazy man.
I just always managed to find a use for a node somewhere else, but if you guys really want it, I'll add it.