Neither says that the gulf is closed to 100% of all traffic. Trump speaks, but the orders with his signature on them, explicit or otherwise, say that Iran, which basically means Iran's ports, are blockaded. Then there's the Iranian side, which says any enemy of Iran (which basically means anybody that isn't actively supporting them in a "if you're not actively with us, we want you gone, you enemy of the true faith"--meaning belief in the Revolution and its aims ... Almost sounds like Russian socialist times, don't it?)
Dubai ... Not part of Iran, not a port of Iran.
Russia ... An active friend of Iran, not enemy.
So who, exactly, is blockading Russian ships?
Oh, the US. Because we're not doing what the Internet thinks the DOD's actually been told to do. (In other words, Trump is always a truth teller and never, but never, exaggerates. That idea is facially 
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