Had to scroll down a long way to find this comment, but I agree with you that these suggested alternatives are not necessarily improvements.
The "poor color choice" Calculator, for example, his alternative is worse than iOS 7 which is worse than iOS 6. Dark keys with a colored totals key are recognizable as a calculator at a glance. No idea what his suggested alternative is smoking.
My main takeaway from this article, like the many other "here's what they should have done" write-ups is: "This is harder than it looks."
The "poor color choice" Calculator, for example, his alternative is worse than iOS 7 which is worse than iOS 6. Dark keys with a colored totals key are recognizable as a calculator at a glance. No idea what his suggested alternative is smoking.
My main takeaway from this article, like the many other "here's what they should have done" write-ups is: "This is harder than it looks."