Operational, I hadn't given it too much thought. I attached a rough scribble to explain how the rest of the line would have worked, how realistic it is I have little idea.
I figured I could get away with it as many micro layouts have featured them.
In the layout world, space for a second point instead of the diamond would have made the 3rd siding too short. It's almost too short as it is.
So there we go. The question was valid, and I have no real answer! Haha!