Rotor nut
On a FIS, identified or not, the controller is not responsible for passing you any traffic information at all, separation remains your responsibility. If the controller has the available capacity, they may pass you traffic information, but it may be passed late, and there is no guarantee that it will be either complete or correct.
"I believed he did nothing for the safety of my flight"
Had you suffered loss of power, electrical circuitry, communications etc, then rest assured, the waters would have parted and that controller would have done everything in his power to assist you. Next time he may choose not to offer you any service at all, after all, services outside CAS are the bottom of his priority, and he is well within his rights to tell you to look for a service elsewhere.
If you do want a proper service, then a RIS is usually the best you can hope for, but if the controllers workload goes up too much, you will be among the first to have your service downgraded or terminated.