This change was more due to the iOS 7 flat redesign, than to what the author proposes.
A design trend, where it became fashionable to have a flat design supported by illustration/iconography, further away from skeumorphism, which photography was more close to.
A design trend, where it became fashionable to have a flat design supported by illustration/iconography, further away from skeumorphism, which photography was more close to.