You don't think that change in style was do to a lack of confidence? At minimum, AJ and his team were not confident in his old style, therefore they changed it.
Fury is paying the price for milking his position. He deserves the criticism. I still rank him above Joshua because he doesn’t have the losses Joshua has suffered, but there is no doubt that AJ has been way more active and has consistently fought better opposition. Joshua has behaved like a champion like him or not his entire career. Fury has shown the heart of a champion in the ring but has not acted like one in making fights or staying active.