From the video the Russian ship was crossing from starboard and would be stand on however the US ship was engaged in helicopter operations and restricted in maneuvering. The US ship should have informed the Russians about the helicopters no mention in the news if there was radio communication.
https://www.foxnews.com/world/us-russian-warships-almost-collide-philippine-sea
https://www.foxnews.com/world/us-russian-warships-almost-collide-philippine-sea