Did Woodward and Bernstein Get Nixon Wrong?

Consider this passage by Historian Evan Thomas:

"In Woodward and Bernstein’s book, The Final Days, Nixon was portrayed as sobbing and beating the carpet, crying out, “What have I done? What has happened?”In his memoir Kissinger said he did not remember this. Like the image of Nixon talking to portraits, the truth, whatever it was, has long since blurred into myth. "