He can shadow step back to the ship, or dismiss his echos and resummon them on the ketch.
Fourien:It's a trap ?
Sunny alone without Fiend, Nightmare, Saint and soon out of reach ?
on a small boat above water, I dont think he can shadowstep to escape
What if she's Torment? That's what I'm worried about. If she's Torment, and has a memory or ability to change how others perceive her, this could be her trying to go and rally her Defiled.