Congrats on the great gift. I got mine for X-mas too.
You are correct in theory it should work, But I know of many whose don't work. The foot brake works off its own master cylinder, in case of failure to the other system.
But since yours is so new, I would take it bak to the dealer. If you are going to have them do the initial service have them fix it then. They way you will still be able to ride until then, its not worth the special trip.