With HMS Lady Sofia being destroyed by the fire, its crew is left there tied up so they perish in the flames.
Marie's fate would be different, but not milder.
The wind spreading her hair also spreads sparks throughout the deck.
The men on board are wounded, but they don't let the weariness show. The only thing that keep them going is the promise of the shared treasure.
Furthermore, after losing the treasure map, Hornigold loses his power as captain and foresees his replacement or, at least, himself being left in a desert island with a bottle of water, a small gun and a single bullet, as it is stated in the Jamaica Discipline - the Pirate Code of Conduct.