I think I've figured it out, sir. That ship is a monkey-trap.
There's nothing wrong with it, but we're going to spend so much time making sure, that Shufgar will be able to attack our flank.
The solution is to burn every node on the ship, and then move it.
That doesn't actually get the monkey's fist out of the trap.
The monkey runs away with the trap, and gets to keep the bait, ook-ook.