No, I really don't think it's possible to over anaylze either of the first two films because the writers have drawn from the themes/character development to write the rest of the tale.
What's important about that line in particular is that Jack rarely asks for help. It shows that he has faith in Will's cleverness to get him out of the sticky situation.
There are some other moments in the island scene that I want to touch on briefly. They mention that Jack is a in human form. He can only live so long as he acts like a god.
I equate that to Jack's situation in being a pirate. He can only live in the pirate world so long as he behaves like a pirate. He cannot escape that world without Will's help.