This seems like an exceptionally cynical perspective. While I don't suggest we should ever stop questioning things or explore what possible motivations could be involved, I'd love to see less of this automatically accusing people of having perceptually negative motivations that don't have any empirical evidence to support them.
He seems to be pretty clear that he heavily debated the idea with himself and ultimately realized that his long term beef with the way he understands Zynga to operate doesn't work for him. The rejection of his addendum seemed like it was just icing on the cake. He deserves the praise he's getting for being honest with himself and the reader, not accused of making a "power play" just because you, or anyone else, can't rationalize the decision any other way. This is the kind of reaction that keeps us from having nice things.
He seems to be pretty clear that he heavily debated the idea with himself and ultimately realized that his long term beef with the way he understands Zynga to operate doesn't work for him. The rejection of his addendum seemed like it was just icing on the cake. He deserves the praise he's getting for being honest with himself and the reader, not accused of making a "power play" just because you, or anyone else, can't rationalize the decision any other way. This is the kind of reaction that keeps us from having nice things.