Got to agree with you, tptacek. People are conveniently forgetting that so many other fired CEO's with fat bank balances have not bothered to be honest about their reasons for leaving.
It seems like there might be a lopsided U-shaped curve to the expected benefit of "cut[ting] through the crap." On the left, at zero admission of guilt, is the baseline. It seems that in the middle there would be a diminished return expected when making a qualified or partial confession, but if you can get past a certain threshold (which may not be possible for all people in all situations), the expected benefit shoots back up.
I don't care that he's nice. I care that he cut through the crap.