When a company is filled with engineers, it turns to engineering to solve problems. Reduce each decision to a simple logic problem. Remove all subjectivity and just look at the data...that data eventually becomes a crutch for every decision, paralyzing the company and preventing it from making any daring design decisions...
Yes, it's true that a team at Google couldn't decide between two blues, so they're testing 41 shades between each blue to see which one performs better. I had a recent debate over whether a border should be 3, 4, or 5 pixels wide, and was asked to prove my case. I can't operate in an environment like that. I've grown tired of debating such minuscule design decisions...
I'll miss working with the incredibly smart and talented people I got to know there. But I won't miss a design philosophy that lives or dies strictly by the sword of data.