Jobs seemed like he actually used everything himself, and he wanted a good experience as a customer. I don’t actually believe Tim Cook uses most of the stuff Apple makes, nothing beyond the basics, and he’s likely willing to compromise that experience to increase the stock price.
I’m still of the opinion that iOS 6 was peak iPhone. Say what you will about skeuomorphism, it was easy to understand, apps were visually unique from one another, and the friendly UI was a nice juxtaposition to the clean minimalist hardware.