I didn't claim anything about the peer reviewers' credentials! I said that if a person is from a big shot pedigree or from a top school, it certainly helps in a situation where a paper or proposal is as good. It is a common flaw in academia to pay too much attention to one's pedigree or affiliations. In my experience it is quite common to hear people say admiringly, "XYZ is Big_Shot's student" and so on. It is sometimes justified to attach importance to pedigree, sometimes it's not.