Apple's last big things were the iPhone and iPad, which Jobs pioneered. Jobs was a minimalist. Cook is a supply chain guy, and also big into gay aesthetics. When Jobs was alive, Apple had the reputation of being the creative person's tool, and even though there were some misfires (the puck mouse and the Apple Cube) the design was always well thought out. Now, Apple is more high tech jewelry, and a lot of the design is awkward.
I like the Cube, I have a couple in my collection with the speakers and they still work on the Internet. The New York Museum of Modern Art holds a G4 Cube, along with its distinctive Harman Kardon transparent speakers, as part of its collection. Great design and beautiful. Under Jonny Ive, design and art were as important as function. Jobs also thought that design was important and let Ive experiment. Cook is a manager, not a designer, and it shows.