The Fath-360 is designed to be handled and operated by people with relatively little training,
It would be much easier (for Russian forces) to launch a strike much faster ... against high-value targets,
That the Iranians are negotiating on nuclear issues with the U.S. will not be seen as connected to what they might do in collaboration with the Russians,
Why would they (Russia) buy inferior Iranian missiles? The only reason I could think of is that they cannot produce a sufficient number of their own missiles,