In the sailing community, we little blow boats are called 'freighter bait'
Unfortunately it’s true. Even if he’s awake and alert the lone seaman on watch in a supertanker’s bridge may not see that 40’ sailboat 1,000 feet away, and couldn’t do anything at that point if he did, and 100 feet below him at night or in bad weather. Those on the ship won’t even feel the collision. Sailboaters are guilty too of setting the autopilot and going below decks for a little shuteye or a quick meal, especially if short handed on a long passage. It’s why I insisted someone be on watch all the time and I be notified if anything came within 3 miles of us.