I think there was a sense that the impact was being lost because the audience was so familiar with the form. You combine that with people's attention spans, which are clearly conditioned to be shorter now, and there's a need to vary the paradigm.
Clothes should just be like a beautiful setting for a jewel: They should offset you.
After all, it is style alone by which posterity will judge of a great work, for an author can have nothing truly his own but his style.