A whitewash is dissembling and deflecting and, ultimately, deceptive. Abelson, and the other authors of the report should have refused to write it.
But Reif is mostly to blame. He asked for the report, and used it to deflect blame.
Now here is where YOU are being deceptive. You are digging for "Hal Abelson is culpably deceptive." You would even prefer something stronger. That's a weak rhetorical ploy. Write it yourself if you want to read it.
"Deceptive is your word. I said 'whitewash'. A whitewash is [...] ultimately deceptive."
I don't feel like I'm so much trying to use debate tactics against you as to observe how uncomfortable even you seem to be with the idea that Hal Abelson was deliberately deceptive.
Do you really believe Hal Abelson was deliberately or negligently --- ie, culpably --- deceptive?
later: added clarifying word "really"