Craig Hockenberry, with a late entry to my round-up of really smart opinions on iOS 7:
But with major user interface changes such as Aqua or iOS 7, Apple has another tendency: they overshoot the mark. Their incremental approach then becomes one where unnecessary items are removed (such as Aqua’s stripes) or improved (excessive shadows and transparency are toned down.)
There’s a good reason for this: it’s much easier to take away elements from a design than it is to add them. Simplicity is achieved by removing that which is not really needed.