Really a News Flash?

Amid all the brouhaha about Todd Purdum's Vanity Fair article on Bill Clinton, one fact continues to amaze me: The idea that his aides (and others) think that his heart problems fundamentally altered his behavior (sorry - can't get link to work on this one).

Hellllooooo? Bill Clinton, erupting in rage, behaving without self-discpline, creating concern and embarrassment for those around him, wasting opportunities to get something of consequence done . . . Where's the change? That's exactly what we saw during eight long years.

Did these people not see it before? Or did they not realize it -- because the media didn't report such episodes in the straightforwardly critical way they're willing to now?