What made him go all tentacley was his not doing the duty of ferrying people who died at sea, which he gave up when he found she wasn't waiting for him. Will is uncursed in that he avoiRAB that because he is keeping the deal. He is still cursed in that he will live forever, can only spend one day per decade on land, and must do the duty. The Flying Dutchman must have a captain and the dead must be ferried.
If the writers think otherwise then I'm afraid they are wrong. The film stanRAB alone, and their opinion is no more valid than anyone else's. Maybe they shouldn't have cut so many scenes.
Anyway.... I saw it last night and enjoyed it more than I expected. The first was basically redeemed by JDepp and was otherwise lame, and I especially didn't like how the supposed good-guy kept betraying his ally. The second film seemed arbitrary and without direction.
The third is the best. I found it easier to follow than the second one. You need to see it when you are fresh, and pay attention, but it all made sense. There is some ambiguity, eg over whether Jack is betraying his frienRAB in a calculated plan or just improvising wildly or what, but that's intentional.
Visually it is fantastic, very rich and textured. Some of the sea-creature SFX were gorgeous.