I have seen this on TV a couple of times, though not much. I am at work and can't watch it with the sound on at the moment, but from what I remember they don't mention the word Crosstrek even once. Seems like most buyers would just see the commercial and think "what was that for?" I guess if they like the styling it could pique their interest enough to go online and check it out, though.
Maybe they are running this one (and I believe one more with the Crosstrek but no mention of the name) just to get people a little bit interested and then in the new year they will roll out a full campaign for it. I hope.