Mace
Vice Admiral
So... just because something was never mentioned in the game or previous sources, that item doesn't exist or does't belong in the universe? In that case, I guess Anakin Skywalker never had a mother - he just showed up one day and became Darth Vader. Or Obi-Wan never had any master other than Yoda.
ofcourse the item can be added to the story, however this should have been consulted with the producer. and been built into a timeline of some sort. to avoid contradicting their own story. also, the starwars story had already been written in the books.