Phrasing is not treated as a priority skill bey the ballroom community. It usually develops in the end, but it is addressed much later and more quietely than in for example the swing dance community. Instead, the priority is on learning the physical details of the action. Given the complications faced on a crowded competition floor, even a routine that is planned with phrasing in mind will not necessarily be able to be danced matching the music - the ability to really phrase consistently with the music will only come when the dancers have enough skill and musical ear to adjust their material to accomodate the floor sitution, and still have the adjustments come out matching the music.
Also, the greater wealth of options available to advanced dancers will make this easier. It is no suprise really that a teaching sequence, confined to a more limited range of options but biased in its selection to those things which will produce flowing movement, may not be phraseable. That is not yet one of its goals.