You jump to conclusions too fast.
There was a mistake on pokemon.co.jp's description of DP159, where a third, additional sentence stated that Hikari was going for a ribbon. This mistake has been acknowledged and the sentence is now removed.
Ok XD
I wasn't really serious there... though I had a little 10% doubt that it might actually happen - I learned to expect the unexpected... "It's DP, EVERYTHING can happen" XD