I think it's a small issue and maybe no issue at all, but I think maybe it could be concidered to limit the players a little bit at the start of the game.
If the player starts a fight onboard the ship, the player gets arrested and wakes up in a prisoncell far away, without birthsign, without class, without a package to deliver, without a clue. In contrast, if the player tries to pick a fight with the Emperor's blades at the beginning of Oblivion all he/she get's is a warning.
Also in Morrobliovion, the player can simply jump off the ship once the player gets up on deck and go any where and do whatever, without birthsign and having no chosen class. Maybe use collision boxes around the ship?
This is no problem for anyone experienced, because we all played through Morrowind so we know the drill and how to get through the charactercreation process and get our first mission delivering the package to that guy in Balmora etc.
However a person who played Oblivion, bought the Game of the year Morrowind because he/she knew of this awesome mod, and wanted to experience morroblivion without playing the original first, might possibly get into trouble here?

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