Creating an item than allows you to change your identity will ruin role playing anyway.
You can be a role player who creates a specific char and this char plays a role in this world.
Or you can look at game mechanics and find funny ways to use them.
But you cannot have all of this at once.
When I saw the video where the devs play the game and answer questions, they made nonsense all the time. (ooops, the fireball that just killed you should have hit the enemy, really

). That had nothing to do with role playing, but they had fun and that is the most importand thing in a game.
If I want to make a serious role playing game (like PST) I would never create such an item. But D:OS1 did not take itself too serious in quite a lot of moments.