It is a very good idea. However I have my doubts if Carnival can implement it well. Implementing ideas does not seem to be a strong suit of Carnival. Almost for sure they have simply added this duty to some employee who is already overloaded.
They have just instituted a "word of the day" and have made it clear that it is not supposed to make extra work just be sure all your reports know what the word is for today. Not a bad idea to keep good practises in mind. However at least on my daughters ship this has resulted in department meetings to give out the word. Another 10 min wasted in a day already busy.