score:6
American Airlines, interestingly, is the airline with the most flights in and out of Haiti (e.g. see the PAP departures/arrivals board). It only makes sense that for these flights, Haitian Creole would be a language option.
In addition, Haitian Creole is widely spoken in the Dominican Republic, the Bahamas, Cuba, and many major cities in the east coast of the US, especially in Florida.
Given all that, it does make some sense that AA might offer Haitian Creole as a language option on at least some of its flights.