Ancalagon
Dusty Dragon
It's 100% an image composition problem.Maybe the magic isn't effective if you pour it that way, but only through the over-the-head method? Rituals in stories make those performing them do seemingly silly things at times...
If she had been holding the helmet properly, it would be slightly above and in front on her head, but holding it that way, at the "angle of view" we have, the helmet would block our view of her face. So to make sure that we could see more of the action, the angle of the helmet was reversed. The better solution would have been to depict the scene from an entirely different angle.