@Chinigan O’ Donovan  
She was brainwashed in this scene

It’s Dark and it’s Magical. It’s all Dark Magic.

At least grow some suspicions. Heck! You did witness the mane six turn into magic that grow ear and tail on the last movie!

Unfortunately, she’s already brainwashed.

This is a normal reaction.
 
IF Celestia hadn’t seen a foofing bunch of magic being used in the last movie.

Yugi: sorry to but in have you seen my Dark Magician card

She told the demonspawn.