@OP Green felt was Steve's taste.
http://daringfireball.net/linked/2011/10/26/more-texture
Scott was only following instructions, plus, how would you explain hypothetically Steve passing away and Scott deliberately redesigning iOS, just because Steve wasn't around?
If you have read books about Apple you will probably know how the company works.
Here is a hint for you,
Board of Directors
https://www.apple.com/pr/bios/
It's pathetic to make fun of him when you have only three years into reading tech blogs and zero experience on technology or science.