She uses silk taffeta in one of the most imaginative ways I have ever seen so I will always be a fan. But yes I would have to agree that she has certainly been in a rut.
She should go back to her days at Fashion East and look for some inspiration from her time spent with the collective. Though back then she displayed a much different aesthetic, her simplified yet technical touch proved she has more to offer.
Less costume and more fashion Simone, please, we know you have it in you.