Dragonite = promotion just as Dawn is. They've already given Dawn copious amounts of screentime before this tournament (what was it, 5 whole episodes compared to May's 2 before the Wallace Cup?), so I can see the writers considering that a way of balancing out the "promotion" of Dawn by eliminating her from the tournament. It's not so much Dawn promotion as it is
Piplup promotion, anyway. The sooner Dawn gets kicked out of the tournament, the sooner she can sit on the sidelines so Piplup can be there wasting our time. Unless he's actually used in a battle, but we don't have the info for Dawn yet to pass judgment there.
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