Cultural event
To make sure they have someone who knows magic by their side and can tell the difference between good and evil, she raised an army, trained them to protect themselves against magic and started hunting.
She was sure that they'd call her out then and there that she was also using some kind of magic and they'll put her in league with the others but lucky for Stella and her, they assumed it was some kind of exorcism technique that was not in league with witchcraft, which they are not wrong about. Due to time constraint and magical exhaustion however they didn't change their appearance at all, most people who come and go assumed that they were decendants of the original witch hunters, so they only needed to change their first names and kept their surnames.