It has nothing to do with being ashamed of what they sold for cheap. It has everything to do with hiding crimes and protecting themselves.
I came across a document by accident last year that showed WaMu transferred assets three or four days before the shutdown to someone in Texas. I thought I downloaded it but I can't seem to find it again. I've been searching months for it.
It's funny because the first P&A they released was only 39 pages. They claimed that was it. Then it came out in deposition that it was 118 pages but they only released 112. If everything had been done by the book there would no be need to hide anything. Another problem is that the deal was never finalized before the bankruptcy.