Don't you recall the infamous fifty-shades-of-blue thing with Google? Google's whole thing is that they quantitatively test everything.
Maybe you've been living under a rock the past 20 years? :P
Googler #1: "Marissa want to change the link colors _again!_ What can we do to make her stop micromanaging shit like this?"
Googler #2: "All we need to do is convince her we are obviously wrong about 'graphic design-y things' because we're developers, and that she can prove we are wrong by making a 'data driven' decision. Then we'll say 'The only way to prove we are wrong would be an insane global 0 way multivariate test of all possible colours!!!' and she'll _insist_ on it. Then we build a tool and run the test and point at the results every time she tries to make us change it again. And we can offer to run the tool for _everything else_ she micromanages us about in future too!"
Googler #1: "Brilliant! So, do we build the tool and run the test? Or just make up the results and present them to her?"
I'm not entirely convinced Google test _anything_.
Certainly not convinced enough to not play it up in the context of a snarky dis on Google and Googler culture.