I doubt that future pirates will knowingly attack Russian ships.
You have to admire the Russian’s solution to that specific problem.
Perhaps the Russians gave them phones to call friends, family and fellow pirates, and instructed them to say, “hey fellow pirates, this Putin guy says we no attack Russian ships or we all get radiation poisoning. This Putin says instead we attack ships of that metrosexual Kenyan POS Obama. Although I do not know what POS stand for, we attack his ships. They say his ships come with red, white, blue flag. But stay away from ship with hammer and sickle, and we no get dead. Allah Akbar.”
But of course, the Obama administration will wonder why no more Russian ships get attacked.