You could say the same about Johnny Ive.
The hardware he makes is beautiful, but that doesn't stop him making the iPad hard to hold with a smooth slippery back, or putting glass on the back of an iPhone thats easy to break.
The look and design of hardware and software has been integral to Apples success over the past few years.
I think the behind the scenes stuff Scott and his team did with iOS would be just as impressive, but we don't get to see much of it because Apple doesn't like to show their workings much.
I agree though, hopefully we will get a way to hide stock apps, and I would really like a way to change my default browser and mail apps.