This is the main reason fans of the ride hate the addition of Sparrow. It takes, the already nerfed, story of the Disneyland version makes the narrative virtually incomprehensible. We went from the cursed pirates, flashing back in time (the descent in darkness) into a pirate attack on a city/looting/burning/finding the treasure that caused the curse.
Now its cursed pirates, an attack to find Sparrow (being protected by somebody who should giv him up to get the pirates out of the town), pirates having an auction of stuff they just stole (and ignoring the reason they came...except that one pirate who rambles about it...Sparrow still hiding), Burning the city and ignoring they are looking for a map made out of a flammable material, Sparrow celebrating finding the cursed treasure (which doesn't seem to affect him at all).
the narrative is gone. Its just a bunch of scenes now that make no sense when assembled into a story.