I don't understand what you mean by no way to shut it off. It has a shutoff at the refrigerator, right? It's not normal to go around putting shut off valves between the source and the fixture, except at the fixture itself, and one main somewhere in the house. An exception would be a PEX home run system with a main manifold, but a normal copper system doesn't have this, so no reason you should require it.
Or am I misunderstanding you?
Yes there is a shut off behind the fridge. But I would have preferred to be able turn it off at the supply end in the event of a problem.