Every story has to start somewhere with the protagonist being in a state of complacency, then having that complacency broken. How you decide to break that complacency is your first initial task as the author. Even if it seems overdone, your plot will have to start somewhere to galvanize the protagonist into action.
If your story is the "Exploring the Land of the Dead" variety, consider this: will your story have any contextual difference if the protagonist suddenly has to flee their home to lands far away and can never return? (This happened to Luke Skywalker in "A New Hope" after his Aunt and Uncle's farm was destroyed). He didn't die but his complacency was broken and he could never return to life the same way.
So, I wouldn't say the protagonist dying is "overused"--it's simply a mechanism to get the plot moving, which is required by the narrative.