Man, this article has the fingerprints of the submarine all over it (http://paulgraham.com/submarine.html). Lots of emphasis on corrective measures, just a passing mention of option clawbacks, with the reassurances that it "affected only a limited number of senior employees."
The one-liner impression I got from the article is "I don't ever want to work for Zynga". The points you mention look to me like trying to present a balanced point of view.