The plot made no sense. Maynard had no role — he just kept being brought along for some reason. I'm not sure what he and Edwina were planning at the end. They were in a small boat at sea without provisions and nowhere to go except back to Jamaica where Morgan had put a price on Maynard's head. Blackbeard was dead, but since at one time or another he'd betrayed pretty much everybody in the movie, it's not surprising. Morgan wasn't exposed as a pirate, which was Maynard's whole purpose. Nobody got the treasure. Very unsatisfying.