I'm venturing off into speculation here, but I don't think there's anything so organized or homogeneous about college admissions. Probably there are thousands of judges across various universities, each with their own biases, each trying to pick a hundreds of candidates among tens of thousands of applicants.

"US unis" don't seem like a homogenous block to me. But then, I went to a state school and received a fantastic CSc education that I would not trade for ivy league at any price. I've also interviewed/hired countless people and never even noticed what school they came from. I guess the policies of Yale don't bother me that much either way.