User blog comment:Morgause5/Speculation and possible spoilers (finale)/@comment-4892425-20121221235721/@comment-4650675-20121222000522

It's not done by Morgana to be fair. If Arthur had not kept magic outlawed, magical users would not join Morgana's side. If she was left powerless without allies, she would not be able to go at war againist Arthur, but it looks like she inspires devotion. Something that would happen less, had magic users not been dissatisfied with how Arthur and Gwen rule.