Everyone was surprised Malia could beat Queenie. They were more surprised she didn't transform into her wolf, they knew her wolf is entrapped and it's known that it's almost impossible for a werewolf to gain back it's wolf once it's cursed. And only this curse could be broken if it were to be the chosen werewolf.
No one wants to believe she's the chosen werewolf, the creators must have been mistaken. Therefore, they didn't believe. They thought she just trained better since she couldn't transform into a wolf, how could she beat Queenie if she hadn't trained? Her trainer must be so amazing.
Everyone was complimenting the 'unexisting' trainer. They didn't have it in their thought she could do that on her own.
"Lock her up" Deborah ordered the pack's guards. She was surprised her daughter
