Mamoswine Vs. Dragonite battle was still fairly entertaining even with Dawn's loss. That Dragonite is an unstoppable beast. If I was 10 years old I'd probably think its the best thing ever, but as an adult it really is just poor writing to give a main character an overpowered pokemon that apparently can resist 4x ice attacks. OH WELL.
Surprising Dawn had no real reaction to her loss. It really does feel like she's just a background character in this tournament rather than being the star of her cameo arc. Even most of this tournament focuses on all the other characters over her.