The only logical reasoning I can see here is that they have proven enough of Shapiro's claims that they can justify (at least to themselves) that, unless proven otherwise, his claims are all true. Hopefully that line of thinking is proven wrong.
Also, something that I think is working against us is the UNC situation. Nevermind, that they got off relatively easy, but more information has broken after the NCAA concluded their investigation making them look like a bunch of idiots (more than usual); I am sure they are trying to avoid that situation again.